ASA 8.x: AnyConnect SSL VPN CAC-SmartCards Configuration with MAC Support

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Updated:May 22, 2008
Document ID:107051

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Contents

Introduction
Prerequisites
Requirements
Components Used
Conventions
Cisco ASA Configuration
Deployment Considerations
Authentication, Authorization, Accounting (AAA) Configuration
Configure LDAP Server
Manage Certificates
Generate Keys
Install Root CA Certificates
Enroll ASA and Install Identity Certificate
AnyConnect VPN Configuration
Create an IP Address Pool
Create Tunnel Group and Group Policy
Tunnel Group Interface and Image Settings
Certificate Matching Rules (If OCSP will be used)
Configure OCSP
Configure OCSP Responder Certificate
Configure CA to use OCSP
Configure OCSP Rules
Cisco AnyConnect Client Configuration
Downloading Cisco Anyconnect VPN Client – Mac OS X
Start Cisco AnyConnect VPN Client – Mac OS X
New Connection
Start remote access
Appendix A – LDAP Mapping and DAP
Scenario 1: Active Directory Enforcement using Remote Access Permission Dial-in – Allow/Deny Access
Active Directory Setup
ASA Configuration
Scenario 2 : Active Directory Enforcement using Group membership to Allow/Deny Access
Active Directory Setup
ASA Configuration
Scenario 3: Dynamic Access Policies for Multiple memberOf Attributes
ASA Configuration
Appendix B – ASA CLI Configuration
Appendix C- Troubleshooting
Troubleshooting AAA and LDAP
Example 1: Allowed Connection with correct attribute mapping
Example 2: Allowed Connection with mis-configured Cisco attribute mapping
Troubleshooting DAP
Example 1: Allowed connection with DAP
Example 2: Denied Connection with DAP
Troubleshooting Certificate Authority / OCSP
Appendix D – Verify LDAP Objects in MS
LDAP Viewer
Active Directory Services Interface Editor
Appendix E
Related Information

Introduction

This document provides a sample configuration on Cisco Adaptive Security Appliance (ASA) for AnyConnect VPN remote access for MAC Support with the Common Access Card (CAC) for authentication.

The scope of this document is to cover the configuration of Cisco ASA with Adaptive Security Device Manager (ASDM), Cisco AnyConnect VPN Client and Microsoft Active Directory (AD)/Lightweight Directory Access Protocol (LDAP).

The configuration in this guide uses Microsoft AD/LDAP server. This document also covers advanced features such as OCSP, LDAP attribute maps and Dynamic Access Polices (DAP).

Prerequisites

Requirements

A basic understanding of Cisco ASA, Cisco AnyConnect Client, Microsoft AD/LDAP and Public Key Infrastructure (PKI) is beneficial in the comprehension of the complete setup. Familiarity with AD group membership, user properties as well as LDAP objects help in the correlation of the authorization process between certificate attributes and AD/LDAP objects.

Components Used

The information in this document is based on these software and hardware versions:

  • Cisco 5500 Series Adaptive Security Appliance (ASA) that runs the software version 8.0(x) and later

  • Cisco Adaptive Security Device Manager (ASDM) version 6.x for ASA 8.x

  • Cisco AnyConnect VPN Client 2.2 with MAC Support

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to the Cisco Technical Tips Conventions for more information on document conventions.

Cisco ASA Configuration

This section covers the configuration of Cisco ASA via ASDM. It covers the necessary steps in order to deploy a VPN remote access tunnel through an SSL AnyConnect connection. The CAC certificate is used for authentication and the User Principal Name (UPN) attribute in the certificate is populated in active directory for authorization.

Deployment Considerations

  • This guide does NOT cover basic configurations such as interfaces, DNS, NTP, routing, device access, ASDM access and so forth. It is assumed that the network operator is familiar with these configurations.

    Refer to Multifunction Security Appliances for more information.

  • The sections highlighted in RED are mandatory configurations needed for basic VPN access. For example, a VPN tunnel can be setup with the CAC card without doing OCSP checks, LDAP mappings and Dynamic Access Policy (DAP) checks. DoD mandates OCSP checking but the tunnel works without OCSP configured.

  • The sections highlighted in BLUE are advanced features that can be included to add more security to the design.

  • ASDM and AnyConnect/SSL VPN can not use the same ports on the same interface. It is recommended to change the ports on one or the other to gain access. For example, use port 445 for ASDM and leave 443 for AC/SSL VPN. The ASDM URL access has changed in 8.x. Use https://<ip_address>:<port>/admin.html.

  • The ASA image required is at least 8.0.2.19 and ASDM 6.0.2.

  • AnyConnect/CAC is supported with Vista.

  • See Appendix A for LDAP & Dynamic Access Policy mapping examples for additional policy enforcement.

  • See Appendix D on how to check LDAP objects in MS.

  • See Related Information for a list of application ports for firewall configuration.

Authentication, Authorization, Accounting (AAA) Configuration

You are authenticated with the use of the certificate in their Common Access Card (CAC) through the DISACertificate Authority (CA) Server or the CA server of their own organization. The certificate must be valid for remote access to the network. In addition to authentication, you must also be authorized to use a Microsoft Active Directory or Lightweight Directory Access Protocol (LDAP) object. Department of Defense (DoD) requires the use of the User Principal Name (UPN) attribute for authorization, which is part of the Subject Alternative Name (SAN) section of the certificate. The UPN or EDI/PI must be in this format, 1234567890@mil. These configurations show how to configure AAA server in the ASA with an LDAP server for authorization. See Appendix A for additional configuration with LDAP object mapping.

Configure LDAP Server

Complete these steps:

  1. Choose Remote Access VPN > AAA Setup > AAA Server Group.

  2. In AAA server groups table, click Add 3.

  3. Enter server group name and choose LDAP in the protocol radio button. See Figure 1.

  4. In Servers in the selected group table, click Add. Make sure that the server you created is highlighted in the previous table.

  5. In the edit AAA server window, complete these steps. See Figure 2.

    Note: Choose the Enable LDAP over SSL option if your LDAP/AD is configured for this type of connection.

    1. Choose the interface where the LDAP is located. This guide shows inside the interface.

    2. Enter the IP address of the server.

    3. Enter server port. The default LDAP port is 389.

    4. Choose Server Type.

    5. Enter Base DN. Ask your AD/LDAP administrator for these values.

      Figure-1

      cac-anyconnect-vpn-01.gif

    6. Under the scope option, choose the appropriate answer. This is dependent on the base DN. Ask your AD/LDAP administrator for assistance.

    7. In the naming attribute, enter userPrincipalName. This is the attribute that is used for user authorization in the AD/LDAP server.

    8. In the Login DN, enter the administrator DN.

      Note: You have administrative rights or rights to view/search the LDAP structure that includes user objects and group membership.

    9. In the Login Password, enter the password of the administrator.

    10. Leave the LDAP attribute to none.

      Figure-2

      cac-anyconnect-vpn-02.gif

      Note: You use this option later on the configuration to add other AD/LDAP object for authorization.

    11. Choose OK.

  6. Choose OK.

Manage Certificates

There are two steps in order to install certificates on the ASA. First, install the CA certificates (Root and Subordinate Certificate Authority) needed. Secondly, enroll the ASA to a specific CA and obtain the identity certificate. DoD PKI utilizes these certificates, Root CA2, Class 3 Root, CA## Intermediate that the ASA is enrolled with, ASA ID certificate and OCSP certificate. But, if you choose not to use OCSP, the OCSP certificate does not need to be installed.

Note: Contact your security POC in order to obtain root certificates as well as instructions on how to enroll for an identity certificate for a device. An SSL certificate should be sufficient for the ASA for remote access. A Dual SAN certificate is not required.

Note: The local machine also has to have the DoD CA chain installed. The certificates can be viewed in the Microsoft Certificate Store with Internet Explorer. DoD has produced a batch file that automatically adds all of the CAs to the machine. Ask your PKI POC for more information.

Note: DoD CA2 and Class 3 Root as well as the ASA ID and CA intermediate that issued the ASA cert should be the only CAs needed for user authentication. All of the current CA intermediates fall under the CA2 and Class 3 Root chain and are trusted as long as the CA2 and Class 3 Roots are added.

Generate Keys

Complete these steps:

  1. Choose Remote Access VPN > Certificate Management > Identity Certificate > Add.

  2. Choose Add a new id certificate and then New by the key pair option.

  3. In the Add Key Pair window, enter a key name, DoD-1024. Click on the radio to add a new key. See Figure 3.

    Figure 3

    cac-anyconnect-vpn-03.gif

  4. Choose size of the key.

  5. Keep Usage to General Purpose.

  6. Click Generate Now.

    Note: DoD Root CA 2 uses a 2048 bit key. A second key that uses a 2048 bit key pair should be generated to be able to use this CA. Complete the previous above steps in order to add a second key.

Install Root CA Certificates

Complete these steps:

  1. Choose Remote Access VPN > Certificate Management > CA Certificate > Add.

  2. Choose Install from File and browse to the certificate.

  3. Choose Install Certificate.

    Figure 4: Installing Root Certificate

    cac-anyconnect-vpn-04.gif

  4. This window should appear. See Figure 5.

    Figure 5

    cac-anyconnect-vpn-05.gif

    Note: Repeat steps 1 through 3 for every certificate that you want to install. DoD PKI requires a certificate for each of these: Root CA 2, Class 3 Root, CA## Intermediate, ASA ID and OCSP Server. The OCSP certificate is not needed if you do not use OCSP.

    Figure 6: Installing Root Certificate

    cac-anyconnect-vpn-06.gif

Enroll ASA and Install Identity Certificate

  1. Choose Remote Access VPN > Certificate Management > Identity Certificate > Add.

  2. Choose Add a new id certificate.

  3. Choose the DoD-1024 Key Pair. See figure 7

    Figure 7: Identity Certificate Parameters

    cac-anyconnect-vpn-07.gif

  4. Go to the Certificate subject DN box and click Select.

  5. In the Certificate Subject DN window, enter the information of the device. See Figure 8 for example.

    Figure 8: Edit DN

    cac-anyconnect-vpn-08.gif

  6. Choose OK.

    Note: Make sure that you use the hostname of the device that is configured in your system when you add the subject DN. The PKI POC can tell you the mandatory fields required.

  7. Choose Add certificate.

  8. Click Browse in order to select the directory where you want to save the request. See Figure 9.

    Figure 9 Certificate Request

    cac-anyconnect-vpn-09.gif

  9. Open the file with WordPad, copy the request to the appropriate documentation and send to your PKI POC. See Figure 10.

    Figure 10: Enrollment Request

    cac-anyconnect-vpn-10.gif

  10. Once you have received the certificate from the CA administrator, choose Remote Access VPN > Certificate Management > ID Certificate > Install. See Figure 11.

    Figure 11: Importing Identity Certificate

    cac-anyconnect-vpn-11.gif

  11. In the Install certificate window, browse to the ID cert and chooseInstall Certificate. See Figure 12 for example.

    Figure 12: Installing Identity Certificate

    cac-anyconnect-vpn-12.gif

    Note: It is recommended to export the ID certificate trustpoint in ordewr to save the issued certificate and key pairs. This allows the ASA administrator to import the certificate and key pairs to a new ASA in case of RMA or hardware failure. Refer to Exporting and Importing Trustpoints for more information.

    Note: Click SAVE in order to save the configuration in flash memory.

AnyConnect VPN Configuration

There are two options in order to configure the VPN parameters in ASDM. The first option is to use the SSL VPN wizard. This is an easy tool to use for users that are new to VPN configuration. The second option is to do it manually and to go through each option. This configuration guide uses the manual method.

Note: There are two methods to get the AC client to the user:

  1. You can download the client from the Cisco website and install it on their machine.

  2. The user can access the ASA via a web browser and the client can be downloaded.

Note:  For example, https://asa.test.com. This guide uses the second method. Once the AC client is installed on the client machine permanently, you just launch the AC client from the application.

Create an IP Address Pool

This is optional if you use another method such as DHCP.

  1. Choose Remote Access VPN > Network (Client) Access > Address Assignment > Address Pools.

  2. Click Add.

  3. In the Add IP Pool window, enter the name of the IP pool, starting and ending IP address and choose a subnet mask. See Figure 13.

    Figure 13: Adding IP Pool

    cac-anyconnect-vpn-13.gif

  4. Choose Ok.

  5. Choose Remote Access VPN > Network (Client) Access > Address Assignment > Assignment Policy.

  6. Select the appropriate IP address assignment method. This guide uses the internal address pools. See Figure 14.

    Figure 14: IP Address Assignment method

    cac-anyconnect-vpn-14.gif

  7. Click Apply.

Create Tunnel Group and Group Policy

Group Policy

Note: If you do not want to create a new policy, you can use the default built in-group policy.

  1. Choose Remote Access VPN -> Network (Client) Access -> Group Policies.

  2. Click Add and choose Internal Group Policy.

  3. In the Add Internal Group Policy window, enter the name for the Group Policy in the Name text box. See Figure 15.

    Figure 15: Adding Internal Group Policy

    cac-anyconnect-vpn-15.gif

    1. In the General tab, choose the SSL VPN Client in the Tunneling Protocols option, unless you use other protocols such as Clientless SSL.

    2. In the Servers section, uncheck the inherit check box and enter the IP address of DNS and WINS servers. Enter DHCP scope if applicable.

    3. In the Servers section, deselect the inherit check box in the Default Domain and enter the appropriate domain name.

    4. In the General tab, deselect the inherit check box in the address pool section and add the address pool created in the previous step. If youuse another method of IP address assignment, leave this to inherit and make the appropriate change.

    5. All other configuration tabs are left to default settings.

      Note: There are two methods to get the AC client to the end users. One method is to go to Cisco.com and download the AC client. The second method is to have the ASA download the client to the user when the user tries to connect. This example shows the latter method.

  4. Next, choose Advanced > SSL VPN Client > Login Settings. See Figure 16.

    Figure 16: Adding Internal Group Policy

    cac-anyconnect-vpn-16.gif

    1. Deselect the Inherit checkbox.

    2. Choose the appropriate Post Login Setting that fits your environment.

    3. Choose the appropriate Default Post Login Selection that fits your environment.

    4. Choose OK.

Tunnel Group Interface and Image Settings

Note: If you do not want to create a new group, you can use the default built-in group.

  1. Choose Remote Access VPN > Network (Client) Access > SSL VPN Connection Profile.

  2. Choose Enable Cisco AnyConnect Client…….

  3. A dialog box appears with the question Would you like to designate an SVC image?

  4. Choose Yes.

  5. If there is already an image, choose the image to use with Browse Flash. If the image is not available, choose Upload and browse for the file on the local computer. See Figure 17. The files can be downloaded from Cisco.com; there is a Windows, MAC and Linux file.

    Figure 17: Add SSL VPN Client Image

    cac-anyconnect-vpn-17.gif

  6. Next enable Allow Access, Require Client Cert and optionally Enable DTLS. See Figure 18.

    Figure 18: Enabling Access

    cac-anyconnect-vpn-18.gif

  7. Click Apply.

  8. Next, create a Connection Profile/Tunnel Group. Choose Remote Access VPN > Network (Client) Access > SSL VPN Connection Profile.

  9. In the Connection Profiles section, click Add.

    Figure 19: Adding Connection Profile

    cac-anyconnect-vpn-19.gif

    1. Name the group.

    2. Choose Certificate in the authentication method.

    3. Choose the group policy created previously.

    4. Ensure that SSL VPN Client is enabled.

    5. Leave other options as default.

  10. Next, chooseAdvanced > Authorization. See Figure 20

    Figure 20: Authorization

    cac-anyconnect-vpn-20.gif

    1. Choose the AD-LDAP group previously created.

    2. Check Users must exist….to connect.

    3. In the mapping fields, choose UPN for the primary and none for secondary.

  11. Choose the SSL VPN section of the menu.

  12. In the Connection Aliases section, complete these steps:

    Figure 21: Connection Aliases

    cac-anyconnect-vpn-21.gif

    1. Choose Add.

    2. Enter the group alias you want to use.

    3. Ensure that Enabled is checked. See Figure 21.

  13. Click OK.

Note: Click Save in order to save the configuration in flash memory.

Certificate Matching Rules (If OCSP will be used)

  1. Choose Remote Access VPN > Advanced > Certificate to SSL VPN Connection Profile Maps. See Figure 22.

    1. Choose Add in the Certificate to Connection Profile Maps section.

    2. You can keep the existing map as DefaultCertificateMap in the map section or create a new one if you already use cert maps for IPsec.

    3. Keep the rule priority.

    4. Under mapped group, leave as -- Not Mapped --. See Figure 22.

      Figure 22: Adding Certificate Matching Rule

      cac-anyconnect-vpn-22.gif

    5. Click OK.

  2. Click Add on the bottom table.

  3. In the Add certificate Matching Rule Criterion window, complete these steps:

    Figure 23: Certificate Matching Rule Criterion

    cac-anyconnect-vpn-23.gif

    1. Keep the Field column to Subject.

    2. Keep the Component column to Whole Field.

    3. Change the Operator column to Does Not Equal.

    4. In the Value column, enter two double quotes “”.

    5. Click Ok and Apply. See Figure 23 for example.

Configure OCSP

The configuration of an OCSP can vary and depends upon the OCSP responder vendor. Read the manual of the vender for more information.

Configure OCSP Responder Certificate

  1. Obtain a self-generated certificate from the OCSP responder.

  2. Complete the procedures mentioned previously and install a certificate for the OSCP server.

    Note: Make sure that Do not check certificates for revocation is selected for the OCSP certificate trustpoint.

Configure CA to use OCSP

  1. Choose Remote Access VPN> Certificate Management > CA Certificates.

  2. Highlight an OCSP in order to choose a CA to configure to use OCSP.

  3. Click Edit.

  4. Ensure that Check certificate for revocation is checked.

  5. In the Revocation Methods section, add OCSP. See Figure 24.

    OCSP Revocation Check

    cac-anyconnect-vpn-24.gif

  6. Ensure Consider Certificate valid…cannot be retrieved is unchecked if you want to follow strict OCSP checking.

Note: Configure/Edit all the CA server that uses OCSP for revocation.

Configure OCSP Rules

Note: Verify that a Certificate Group Matching Policy is created and the OCSP responder is configured before you complete these steps.

Note:  In some OCSP implementations, a DNS A and PTR record can be needed for the ASA. This check is done in order to verify that the ASA is from a .mil site.

  1. Choose Remote Access VPN> Certificate Management > CA Certificates 2.

  2. Highlight an OCSP in order to choose a CA to configure to use OCSP.

  3. Choose Edit.

  4. Click the OCSP Rule tab.

  5. Click Add .

  6. In the Add OCSP Rule window, complete these steps. See Figure 25.

    Figure 25: Adding OCSP Rules

    cac-anyconnect-vpn-25.gif

    1. In the Certificate Map option, choose DefaultCertificateMap or a map created previously.

    2. In the Certificate option, choose OCSP responder.

    3. In the index option, enter 10.

    4. In the URL option, enter the IP address or the hostname of the OCSP responder. If you use the hostname, make sure DNS server is configured on ASA.

    5. Click Ok.

    6. Click Apply.

Cisco AnyConnect Client Configuration

This section covers the configuration of the Cisco AnyConnect VPN client.

Assumptions—Cisco AnyConnect VPN Client and middleware application is already installed in the host PC. ActivCard Gold and ActivClient were tested.

Note: This guide uses the group-url method for initial AC client install only. Once the AC client is installed, you launch the AC application just like the IPsec client.

Note: The DoD certificate chain needs to be installed on the local machine. Check with the PKI POC in order to obtain the certificates/batch file.

Note: The card reader driver for MAC OSX is already installed and compatible with the current OS version that you use.

Downloading Cisco Anyconnect VPN Client – Mac OS X

  1. Launch a web session to the ASA through Safari. The address should be in the format of https://Outside-Interface. For example, https://172.18.120.225.

  2. A popup window asks to verify the certificate of the ASA. Click Continue.

  3. Another popup window appears in order to unlock the CAC keychain. Enter your pin number. See Figure 31.

    Figure 31: Enter PIN

    cac-anyconnect-vpn-31.gif

  4. After the SSL VPN-service web page appears, click Continue.

  5. After you unlock the keychain, the browser prompts you if you trust the certificate from the ASA. Click trust.

  6. Enter the root password in order to unlock keychain to establish secure connection, and then click Ok.

  7. Choose the certificate to use for client authentication, and then click Ok.

  8. The browser then asks for the root/user password in order to allow for downloading of AnyConnect clients.

  9. If authenticated, the AnyConnect client starts to download. See Figure 32.

    Figure 32: AnyConnect Download

    cac-anyconnect-vpn-32.gif

  10. After the application is downloaded, the browser prompts you to accept the ASA certificate. Click Accept.

  11. Connection is established. Figure 33.

    Figure 33:AnyConnect Connected

    cac-anyconnect-vpn-33.gif

Start Cisco AnyConnect VPN Client – Mac OS X

From Finder—Applications > Cisco AnyConnect VPN Client

Note: See Appendix E for Optional AnyConnect Client Profile Configuration.

New Connection

The AC window appears. See Figure 37.

Figure 37: New VPN Connection

cac-anyconnect-vpn-37.gif

  1. Choose the appropriate host if AC does not automatically try the connection.

  2. Enter your PIN when prompted. See Figure 38.

    Figure 38: Enter PIN

    cac-anyconnect-vpn-38.gif

Start remote access

  1. Choose the group and host to which you want to connect.

  2. Since certificates are used, choose Connect in order to establish the VPN. See Figure 39.

    Note: Since the connection uses certificates, there is no need to enter a username and password.

    Figure 39: Connecting

    cac-anyconnect-vpn-39.gif

    Note: See Appendix E for Optional AnyConnect Client Profile Configuration.

Appendix A – LDAP Mapping and DAP

In ASA/PIX release 7.1(x) and later, a feature called LDAP mapping was introduced. This is a powerful feature that provides a mapping between a Cisco attribute and LDAP objects/attribute, which negates the need for LDAP schema change. For CAC authentication implementation, this can support additional policy enforcement on remote access connection. These are examples of LDAP mapping. Be aware that you need administrator rights in order to make changes in the AD/LDAP server. In ASA 8.x software, the Dynamic Access Policy (DAP) feature was introduced. DAP can work in conjunction with CAC to look at multiple AD groups as well as push policies, ACLs and so forth.

Scenario 1: Active Directory Enforcement using Remote Access Permission Dial-in – Allow/Deny Access

This example maps the AD attribute msNPAllowDailin to Cisco’s attribute cVPN3000-Tunneling- Protocol.

  • The AD attribute value: TRUE = Allow; FALSE = Deny

  • Cisco attribute value: 1 = FALSE, 4 (IPSec) or 20 (4 IPSEC + 16 WebVPN) = TRUE,

For ALLOW condition, you map:

  • TRUE = 20

For DENY dial-in condition, you map:

  • FALSE = 1

Note: Make sure that TRUE and FALSE are in all caps. Refer to Configuring an External Server for Security Appliance User Authorization for more information.

Active Directory Setup

  1. In the Active Directory Server, click Start > Run.

  2. In the Open text box, type dsa.msc then click Ok. This starts the active directory management console.

  3. In the Active Directory management console, click the plus sign in order to expand the Active Directory Users and Computers.

  4. Click the plus sign in order to expand the domain name.

  5. If you have an OU created for your users, expand the OU in order to view all users; if you have all users assigned in the Users folder, expand that folder in order to view them. See Figure A1.

    Figure A1: Active Directory Management Console

    cac-anyconnect-vpn-40.gif

  6. Double-click on the user that you want to edit.

    Click on the Dial-in tab in the user properties page and click on allow or deny. See Figure A2.

    Figure A2: User Properties

    cac-anyconnect-vpn-41.gif

  7. Then click Ok.

ASA Configuration

  1. In ASDM, choose Remote Access VPN> AAA Setup > LDAP Attribute Map.

  2. Click Add.

  3. In the Add LDAP Attribute Map window, complete these steps. See Figure A3.

    Figure A3: Adding LDAP Attribute Map

    cac-anyconnect-vpn-42.gif

    1. Enter a name in the Name textbox.

    2. In the Map Name Tab, type msNPAllowDialin in the Customer Name text box.

    3. In the Map Name Tab, choose Tunneling-Protocols in the drop-down option in the Cisco Name.

    4. Click Add.

    5. Choose the Map Value tab.

    6. Click Add.

    7. In the Add Attribute LDAP Map Value window, type TRUE in the Customer Name text box and type 20 in the Cisco Value text box.

    8. Click Add.

    9. Type FALSE in the Customer Name text box and type 1 in the Cisco Value text box. See Figure A4.

      cac-anyconnect-vpn-43.gif

    10. Click Ok.

    11. Click Ok.

    12. Click APPLY.

    13. Configuration should look like Figure A5.

      Figure A5: LDAP Attribute Map configuration

      cac-anyconnect-vpn-44.gif

  4. Choose Remote Access VPN> AAA Setup > AAA Server Groups. See Figure A6.

    Figure A6: AAA Server Groups

    cac-anyconnect-vpn-45.gif

  5. Click on the server group that you want to edit. In the Servers in the Selected Group section, choose the server IP address or hostname, and then click Edit.

  6. In Edit AAA Server window, in the LDAP Attribute Map text box, choose the LDAP attribute map created in the drop-down menu. See Figure A7

    Figure A7: Adding LDAP Attribute Map

    cac-anyconnect-vpn-46.gif

  7. Click Ok.

Note: Turn on LDAP debugging while you test in order to verify if LDAP binding and attribute mapping work properly. See Appendix C for troubleshooting commands.

Scenario 2 : Active Directory Enforcement using Group membership to Allow/Deny Access

This example uses the LDAP attribute memberOf to map to the Tunneling Protocol attribute in order to establish a group membership as a condition. For this policy to work, you must have these conditions:

  • Use a group that already exists or create a new group for ASA VPN users to be a member of for ALLOW conditions.

  • Use a group that already exists or create a new group for non ASA users to be a member of for DENY conditions.

  • Make sure to check in the LDAP viewer that you have the right DN for the group. See Appendix D. If the DN is wrong, the mapping does not work properly.

Note: Be aware that the ASA can only read the first string of the memeberOf attribute in this release. Make sure that the new group created is on the top of the list. The other option is to put a special character in front of the name as AD looks at special characters first. In order to work around this caveat,use DAP in 8.x software to look at multiple groups.

Note: Make sure a user is part of the deny group or at least one other group so that the memberOf is always sent back to the ASA. You do not have to specify the FALSE deny condition but best practice is to do so. If the existing group name or the group name contains a space, enter the attribute in this manner: 

CN=Backup Operators,CN=Builtin,DC=ggsgseclab,DC=org

Note: DAP allows the ASA to look at multiple groups in the memberOf attribute and base authorization off the groups. See the DAP section.

MAPPING

  • The AD attribute value:

    • memberOf CN=ASAUsers,CN=Users,DC=ggsgseclab,DC=org

    • memberOf CN=TelnetClients,CN=Users,DC=labrat,DC=com

  • Cisco attribute value: 1 = FALSE, 20 = TRUE,

For ALLOW condition, you map:

  • memberOf CN=ASAUsers,CN=Users,DC=ggsgseclab,DC=org= 20

For DENY condition, you map:

  • memberOf CN=TelnetClients,CN=Users,DC=ggsgseclab,DC=org = 1

Note: In future release, there is a Cisco attribute in order to allow and deny connection. Refer to Configuring an External Server for Security Appliance User Authorization for more information on Cisco attributes.

Active Directory Setup

  1. In the Active Directory Server, choose Start > Run.

  2. In the Open text box, type dsa.msc, and then click Ok. This starts the active directory management console.

  3. In the Active Directory management console, click the plus sign in order to expand the Active Directory Users and Computers. See Figure A8

    Figure A8: Active Directory Groups

    cac-anyconnect-vpn-47.gif

  4. Click the plus sign in order to expand the domain name.

  5. Right-click on the Users folder and choose New > Group.

  6. Enter a Group Name. For example: ASAUsers.

  7. Click Ok.

  8. Click on the Users folder, and then double-click on the group you just created.

  9. Choose Members tab, and then click Add.

  10. Type the Name of the user you want to add, and then click Ok.

ASA Configuration

  1. In ASDM, choose Remote Access VPN > AAA Setup > LDAP Attribute Map.

  2. Click Add.

  3. In the Add LDAP Attribute Map window, complete these steps. See Figure A3.

    1. Enter a name in the Name textbox.

    2. In the Map Name Tab, type memberOf in the Customer Name text box c.

    3. In the Map Name Tab, choose Tunneling-Protocols in the drop-down option in the Cisco Name.

    4. Choose Add.

    5. Click the Map Value tab.

    6. Choose Add.

    7. In the Add Attribute LDAP Map Value window, type CN=ASAUsers,CN=Users,DC=ggsgseclab,DC=org in the Customer Name text box and type 20 in the Cisco Value text box.

    8. Click Add.

    9. Type CN=TelnetClients,CN=Users,DC=ggsgseclab,DC=org in the Customer Name text box and type 1 in the Cisco Value text box. See Figure A4.

    10. Click Ok.

    11. Click Ok.

    12. Click Apply.

    13. Configuration should look like Figure A9.

    Figure A9 LDAP Attribute Map

    cac-anyconnect-vpn-48.gif

  4. Choose Remote Access VPN> AAA Setup > AAA Server Groups.

  5. Click on the server group that you want to edit. In the Servers in the Selected Group section, select the server IP address or hostname, and then click Edit

    cac-anyconnect-vpn-49.gif

  6. In Edit AAA Server window, in the LDAP Attribute Map text box, select the LDAP attribute map created in the drop-down menu.

  7. Click Ok.

Note: Turn on LDAP debugging while you test in order to verify LDAP binding and attribute mappings work properly. See Appendix C for troubleshooting commands.

Scenario 3: Dynamic Access Policies for Multiple memberOf Attributes

This example uses DAP to look at multiple memberOf attributes in order to allow access based off of Active Directory group membership. Prior to 8.x, the ASA only read the first memberOf attribute. With 8.x and later, the ASA can look at all the memberOf attributes.

  • Use a group that already exists or create a new group (or multiple groups) for ASA VPN users to be a member of for ALLOW conditions.

  • Use a group that already exists or create a new group for non ASA users to be a member of for DENY conditions.

  • Make sure to check in the LDAP viewer that you have the right DN for the group. See Appendix D. If the DN is wrong, the mapping does not work properly.

ASA Configuration

  1. In ASDM, choose Remote Access VPN> Network (Client) Access > Dynamic Access Policies.

  2. Click Add.

  3. In the Add Dynamic Access Policy, complete these steps:

    1. Enter a name in the Name textbox b.

    2. In the priority section, enter 1, or a number greater than 0.

    3. In the Selection Criteria, click Add.

    4. In the Add AAA Attribute, choose LDAP .

    5. In the attribute ID section, enter memberOf.

    6. In the value section, choose = and enter the AD group name. Repeat this step for each group you want to reference. See figure A10.

      Figure A10 AAA Attribute Map

      cac-anyconnect-vpn-50.gif

    7. Click OK.

    8. In the Access Policy Attributes section, chooseContinue. See figure A11.

      Figure A11 Add Dynamic Policy

      cac-anyconnect-vpn-51.gif

  4. In ASDM, choose Remote Access VPN> Network (Client) Access > Dynamic Access Policies.

  5. Choose Default Access Policy and choose Edit.

  6. The default action should be set to Terminate. See figure A12.

    Figure A12 Edit Dynamic Policy

    cac-anyconnect-vpn-52.gif

  7. Click Ok.

Note: If Terminate is not selected, you are allowed in even if not in any groups because the default is to Continue.

Appendix B – ASA CLI Configuration

ASA 5510 
ciscoasa#show running-config
: Saved
:
ASA Version 8.0(2)
!
hostname asa80
domain-name army.mil
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!
interface GigabitEthernet0/0
nameif outside
security-level 0
ip address x.x.x.x 255.255.255.128
!
interface GigabitEthernet0/1
nameif inside
security-level 100
no ip address
!
boot system disk0:/asa802-k8.bin
ftp mode passive
dns server-group DefaultDNS
domain-name army.mil
!
--------------ACL's-------------------------------------------------
access-list out extended permit ip any any
--------------------------------------------------------------------
pager lines 24
logging console debugging
mtu outside 1500
!
---------------VPN Pool---------------------------------------------
ip local pool CAC-USERS 192.168.1.1-192.168.1.254 mask 255.255.255.0
--------------------------------------------------------------------
!
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-602.bin
no asdm history enable
arp timeout 14400
access-group out in interface outside
route outside 0.0.0.0 0.0.0.0 172.18.120.129 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat
0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect
0:02:00
timeout uauth 0:05:00 absolute
!
--------------------------LDAP Maps & DAP---------------------------
ldap attribute-map memberOf
map-name memberOf Tunneling-Protocols
March 11, 2008 ASA – CAC Authentication for AnyConnect VPN Access
Company Confidential. A printed copy of this document is considered uncontrolled.
49
map-value memberOf CN=_ASAUsers,CN=Users,DC=ggsgseclab,DC=org 20
ldap attribute-map msNPAllowDialin
map-name msNPAllowDialin Tunneling-Protocols
map-value msNPAllowDialin FALSE 1
map-value msNPAllowDialin TRUE 20
dynamic-access-policy-record CAC-USERS
description "Multi-Group Membership Check"
priority 1
dynamic-access-policy-record DfltAccessPolicy
action terminate
--------------------------------------------------------------------
!
--------------------LDAP Server-------------------------------------
aaa-server AD-LDAP protocol ldap
aaa-server AD-LDAP (outside) host 172.18.120.160
ldap-base-dn CN=Users,DC=ggsgseclab,DC=org
ldap-scope onelevel
ldap-naming-attribute userPrincipalName
ldap-login-password *
ldap-login-dn CN=Administrator,CN=Users,DC=ggsgseclab,DC=org
--------------------------------------------------------------------
!
aaa authentication http console LOCAL
http server enable 445
http 0.0.0.0 0.0.0.0 outside
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
!
----------------CA Trustpoints--------------------------------------
crypto ca trustpoint ASDM_TrustPoint0
revocation-check ocsp
enrollment terminal
keypair DoD-1024
match certificate DefaultCertificateMap override ocsp trustpoint
ASDM_TrustPoint5 10 url http://ocsp.disa.mil
crl configure
crypto ca trustpoint ASDM_TrustPoint1
revocation-check ocsp
enrollment terminal
fqdn asa80
subject-name CN=asa80,OU=PKI,OU=DoD,O=U.S. Government,C=US
keypair DoD-1024
match certificate DefaultCertificateMap override ocsp trustpoint
ASDM_TrustPoint5 10 url http://ocsp.disa.mil
no client-types
crl configure
crypto ca trustpoint ASDM_TrustPoint2
revocation-check ocsp
enrollment terminal
keypair DoD-2048
match certificate DefaultCertificateMap override ocsp trustpoint
ASDM_TrustPoint5 10 url http://ocsp.disa.mil
no client-types
crl configure
crypto ca trustpoint ASDM_TrustPoint3
revocation-check ocsp none
enrollment terminal
crl configure
!
-------------------Certificate Map-------------------------------
crypto ca certificate map DefaultCertificateMap 10
subject-name ne ""
--------------------CA Certificates (Partial Cert is Shown)------------
crypto ca certificate chain ASDM_TrustPoint0
certificate ca 37
3082044c 30820334 a0030201 02020137 300d0609 2a864886 f70d0101
05050030
60310b30 09060355 04061302 55533118 30160603 55040a13 0f552e53
2e20476f
7665726e 6d656e74 310c300a 06035504 0b130344 6f44310c 300a0603
55040b13
03504b49 311b3019 06035504 03131244 6f44204a 49544320 526f6f74
crypto ca certificate chain ASDM_TrustPoint1
certificate 319e
30820411 3082037a a0030201 02020231 9e300d06 092a8648 86f70d01
01050500
305c310b 30090603 55040613 02555331 18301606 0355040a 130f552e
532e2047
6f766572 6e6d656e 74310c30 0a060355 040b1303 446f4431 0c300a06
0355040b
crypto ca certificate chain ASDM_TrustPoint2
certificate ca 37
3082044c 30820334 a0030201 02020137 300d0609 2a864886 f70d0101
05050030
60310b30 09060355 04061302 55533118 30160603 55040a13 0f552e53
2e20476f
7665726e 6d656e74 310c300a 06035504 0b130344 6f44310c 300a0603
55040b13
f766e045 f15ddb43 9549d1e9 a0ea6814 b64bcece 089e1b6e 1be959a5
6fc20a76
crypto ca certificate chain ASDM_TrustPoint3
certificate ca 05
30820370 30820258 a0030201 02020105 300d0609 2a864886 f70d0101
05050030
5b310b30 09060355 04061302 55533118 30160603 55040a13 0f552e53
2e20476f
7665726e 6d656e74 310c300a 06035504 0b130344 6f44310c 300a0603
55040b13
03504b49 31163014 06035504 03130d44 6f442052 6f6f7420 43412032
301e170d
30343132 31333135 30303130 5a170d32 39313230 35313530 3031305a
305b310b
30090603 55040613 02555331 18301606 0355040a 130f552e 532e2047
6f766572
6e6d656e 74310c30 0a060355 040b1303 446f4431 0c300a06 0355040b
1303504b
49311630 14060355 0403130d 446f4420 526f6f74 20434120 32308201
crypto ca certificate chain ASDM_TrustPoint4
certificate ca 04
30820267 308201d0 a0030201 02020104 300d0609 2a864886 f70d0101
05050030
61310b30 09060355 04061302 55533118 30160603 55040a13 0f552e53
2e20476f
7665726e 6d656e74 310c300a 06035504 0b130344 6f44310c 300a0603
55040b13
03504b49 311c301a 06035504 03131344 6f442043 4c415353 20332052
6f6f7420
!
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect netbios
inspect rsh
inspect rtsp
inspect skinny
inspect esmtp
inspect sqlnet
inspect sunrpc
inspect tftp
inspect sip
inspect xdmcp
!
service-policy global_policy global
!
-------------------------SSL/WEBVPN------------------------------------
ssl certificate-authentication interface outside port 443
webvpn
enable outside
svc image disk0:/anyconnect-win-2.0.0343-k9.pkg 1
svc enable
tunnel-group-list enable
--------------------------------------------------------------------
-----------------------VPN Group/Tunnel Policy--------------------
group-policy CAC-USERS internal
ggroup-policy AC-USERS internal
group-policy AC-USERS attributes
vpn-tunnel-protocol svc
address-pools value CAC-USERS
webvpn
svc ask none default svc
tunnel-group AC-USERS type remote-access
tunnel-group AC-USERS general-attributes
authorization-server-group AD-LDAP
default-group-policy AC-USERS
authorization-required
authorization-dn-attributes UPN
tunnel-group AC-USERS webvpn-attributes
authentication certificate
group-alias AC-USERS enable
tunnel-group-map enable rules
no tunnel-group-map enable ou
no tunnel-group-map enable ike-id
no tunnel-group-map enable peer-ip
--------------------------------------------------------------------
prompt hostname context

Appendix C- Troubleshooting

Troubleshooting AAA and LDAP

  • debug ldap 255—Displays LDAP exchanges

  • debug aaa common 10—Displays AAA exchanges

Example 1: Allowed Connection with correct attribute mapping

This example shows the output of debug ldap and debug aaa common during a successful connection with the scenario 2 shown in Appendix A.

Figure C1: debug LDAP and debug aaa common output – correct mapping 
AAA API: In aaa_open
AAA session opened: handle = 39
AAA API: In aaa_process_async
aaa_process_async: sending AAA_MSG_PROCESS
AAA task: aaa_process_msg(1a87a64) received message type 0
AAA FSM: In AAA_StartAAATransaction
AAA FSM: In AAA_InitTransaction
Initiating authorization query (Svr Grp: AD-LDAP)
------------------------------------------------
AAA FSM: In AAA_BindServer
AAA_BindServer: Using server: 172.18.120.160
AAA FSM: In AAA_SendMsg
User: 1234567890@mil
Pasw: 1234567890@mil
Resp:
[78] Session Start
[78] New request Session, context 0x26f1c44, reqType = 0
[78] Fiber started
[78] Creating LDAP context with uri=ldap:// 172.18.120.160:389
[78] Binding as administrator
[78] Performing Simple authentication for Administrator to
172.18.120.160
[78] Connect to LDAP server: ldap:// 172.18.120.160, status =
Successful
[78] LDAP Search:
Base DN = [CN=Users,DC=ggsgseclab,DC=org]
Filter = [userPrincipalName=1234567890@mil]
Scope = [SUBTREE]
[78] Retrieved Attributes:
[78] objectClass: value = top
[78] objectClass: value = person
[78] objectClass: value = organizationalPerson
[78] objectClass: value = user
[78] cn: value = Ethan Hunt
[78] sn: value = Hunt
[78] userCertificate: value =
0..50........../........60...*.H........0@1.0.....&...,d....com1.0.....
&...,d...
[78] userCertificate: value =
0..'0........../..t.....50...*.H........0@1.0.....&...,d....com1.0.....
&...,d...
[78] givenName: value = Ethan
[78] distinguishedName: value = CN=Ethan
Hunt,OU=MIL,DC=labrat,DC=com
[78] instanceType: value = 4
[78] whenCreated: value = 20060613151033.0Z
[78] whenChanged: value = 20060622185924.0Z
[78] displayName: value = Ethan Hunt
[78] uSNCreated: value = 14050
[78] memberOf: value = CN=ASAUsers,CN=Users,DC=ggsgseclab,DC=org
[78] mapped to cVPN3000-Tunneling-Protocols: value = 20
[78] uSNChanged: value = 14855
[78] name: value = Ethan Hunt
[78] objectGUID: value = ..9...NJ..GU..z.
[78] userAccountControl: value = 66048
[78] badPwdCount: value = 0
[78] codePage: value = 0
[78] countryCode: value = 0
[78] badPasswordTime: value = 127954717631875000
[78] lastLogoff: value = 0
[78] lastLogon: value = 127954849209218750
[78] pwdLastSet: value = 127946850340781250
[78] primaryGroupID: value = 513
[78] objectSid: value = ................q......mY...
[78] accountExpires: value = 9223372036854775807
[78] logonCount: value = 25
[78] sAMAccountName: value = 1234567890
[78] sAMAccountType: value = 805306368
[78] userPrincipalName: value = 1234567890@mil
[78] objectCategory: value =
[78] mail: value = Ethan.Hunt@labrat.com
callback_aaa_task: status = 1, msg =
AAA FSM: In aaa_backend_callback
aaa_backend_callback: Handle = 39, pAcb = 2ae115c
[78] Fiber exit Tx=147 bytes Rx=4821 bytes, status=1
[78] Session End
AAA task: aaa_process_msg(1a87a64) received message type 1
AAA FSM: In AAA_ProcSvrResp
Back End response:
------------------
Authorization Status: 1 (ACCEPT)
AAA FSM: In AAA_NextFunction
AAA_NextFunction: i_fsm_state = IFSM_AUTHORIZE, auth_status = ACCEPT
AAA_NextFunction: authen svr = <none>, author svr = AD-LDAP, user pol =
, tunn pol = CAC-USERS
AAA_NextFunction: New i_fsm_state = IFSM_TUNN_GRP_POLICY,
AAA FSM: In AAA_InitTransaction
aaai_policy_name_to_server_id(CAC-USERS)
Got server ID 0 for group policy DB
Initiating tunnel group policy lookup (Svr Grp: GROUP_POLICY_DB)
------------------------------------------------
AAA FSM: In AAA_BindServer
AAA_BindServer: Using server: <Internal Server>
AAA FSM: In AAA_SendMsg
User: CAC-USER
Pasw:
Resp:
grp_policy_ioctl(12f1b20, 114698, 1a870b4)
grp_policy_ioctl: Looking up CAC-USERS
callback_aaa_task: status = 1, msg =
AAA FSM: In aaa_backend_callback
aaa_backend_callback: Handle = 39, pAcb = 2ae115c
AAA task: aaa_process_msg(1a87a64) received message type 1
AAA FSM: In AAA_ProcSvrResp
Back End response:
------------------
Tunnel Group Policy Status: 1 (ACCEPT)
AAA FSM: In AAA_NextFunction
AAA_NextFunction: i_fsm_state = IFSM_TUNN_GRP_POLICY, auth_status =
ACCEPT
AAA_NextFunction: authen svr = <none>, author svr = AD-LDAP, user pol =
, tunn pol = CAC-USERS
AAA_NextFunction: New i_fsm_state = IFSM_DONE,
AAA FSM: In AAA_ProcessFinal
Checking time simultaneous login restriction for user 1234567890@mil
AAA FSM: In AAA_Callback
user attributes:
1 Tunnelling-Protocol(4107) 20 20
user policy attributes:
None
tunnel policy attributes:
1 Primary-DNS(4101) 4 IP: 10.0.10.100
2 Secondary-DNS(4102) 4 IP: 0.0.0.0
3 Tunnelling-Protocol(4107) 4 4
4 Default-Domain-Name(4124) 10 "ggsgseclab.org"
5 List of address pools to assign addresses from(4313) 10
"CAC-USERS"
Auth Status = ACCEPT
AAA API: In aaa_close
AAA task: aaa_process_msg(1a87a64) received message type 3
In aaai_close_session (39)
AAA API: In aaa_send_acct_start
AAA API: In aaa_send_acct_stop
CAC-Test#

Example 2: Allowed Connection with mis-configured Cisco attribute mapping

This example shows the output of debug ldap and debug aaa common during an allowed connection with the scenario 2 shown in Appendix A.

Figure C2: debug LDAP and debug aaa common output – incorrect mapping 
AAA API: In aaa_open
AAA session opened: handle = 41
AAA API: In aaa_process_async
aaa_process_async: sending AAA_MSG_PROCESS
AAA task: aaa_process_msg(1a87a64) received message type 0
AAA FSM: In AAA_StartAAATransaction
AAA FSM: In AAA_InitTransaction
Initiating authorization query (Svr Grp: AD-LDAP)
------------------------------------------------
AAA FSM: In AAA_BindServer
AAA_BindServer: Using server: 172.18.120.160
AAA FSM: In AAA_SendMsg
User: 1234567890@mil
Pasw: 1234567890@mil
Resp:
[82] Session Start
[82] New request Session, context 0x26f1c44, reqType = 0
[82] Fiber started
[82] Creating LDAP context with uri=ldap://172.18.120.160:389
[82] Binding as administrator
[82] Performing Simple authentication for Administrator to
172.18.120.160
[82] Connect to LDAP server: ldap:// 172.18.120.160:389, status =
Successful
[82] LDAP Search:
Base DN = [CN=Users,DC=ggsgseclab,DC=org]
Filter = [userPrincipalName=1234567890@mil]
Scope = [SUBTREE]
[82] Retrieved Attributes:
[82] objectClass: value = top
[82] objectClass: value = person
[82] objectClass: value = organizationalPerson
[82] objectClass: value = user
[82] cn: value = Ethan Hunt
[82] sn: value = Hunt
[82] userCertificate: value =
0..50........../........60...*.H........0@1.0.....&...,d....com1.0.....
&...,d...
[82] userCertificate: value =
0..'0........../..t.....50...*.H........0@1.0.....&...,d....com1.0.....
&...,d...
[82] givenName: value = Ethan
[82] distinguishedName: value = CN=Ethan
Hunt,OU=MIL,DC=labrat,DC=com
[82] instanceType: value = 4
[82] whenCreated: value = 20060613151033.0Z
[82] whenChanged: value = 20060622185924.0Z
[82] displayName: value = Ethan Hunt
[82] uSNCreated: value = 14050
[82] memberOf: value = CN=ASAUsers,CN=Users,DC=ggsgseclab,DC=org
[82] mapped to cVPN3000-Tunneling-Protocols: value =
CN=ASAUsers,CN=Users,DC=ggsgseclab,DC=org
[82] uSNChanged: value = 14855
[82] name: value = Ethan Hunt
[82] objectGUID: value = ..9...NJ..GU..z.
[82] userAccountControl: value = 66048
[82] badPwdCount: value = 0
[82] codePage: value = 0
[82] countryCode: value = 0
[82] badPasswordTime: value = 127954717631875000
[82] lastLogoff: value = 0
[82] lastLogon: value = 127954849209218750
[82] pwdLastSet: value = 127946850340781250
[82] primaryGroupID: value = 513
[82] objectSid: value = ................q......mY...
[82] accountExpires: value = 9223372036854775807
[82] logonCount: value = 25
[82] sAMAccountName: value = 1234567890
[82] sAMAccountType: value = 805306368
[82] userPrincipalName: value = 1234567890@mil
[82] objectCategory: value =
CN=Person,CN=Schema,CN=Configuration,DC=ggsgseclab,DC=org
[82] mail: value = Ethan.Hunt@labrat.com
callback_aaa_task: status = 1, msg =
AAA FSM: In aaa_backend_callback
aaa_backend_callback: Handle = 41, pAcb = 2ae115c
[82] Fiber exit Tx=147 bytes Rx=4821 bytes, status=1
[82] Session End
AAA task: aaa_process_msg(1a87a64) received message type 1
AAA FSM: In AAA_ProcSvrResp
Back End response:
------------------
Authorization Status: 1 (ACCEPT)
AAA FSM: In AAA_NextFunction
AAA_NextFunction: i_fsm_state = IFSM_AUTHORIZE, auth_status = ACCEPT
AAA_NextFunction: authen svr = <none>, author svr = AD-LDAP, user pol =
, tunn pol = CAC-USERS
AAA_NextFunction: New i_fsm_state = IFSM_TUNN_GRP_POLICY,
AAA FSM: In AAA_InitTransaction
aaai_policy_name_to_server_id(USAFE)
Got server ID 0 for group policy DB
Initiating tunnel group policy lookup (Svr Grp: GROUP_POLICY_DB)
------------------------------------------------
AAA FSM: In AAA_BindServer
AAA_BindServer: Using server: <Internal Server>
AAA FSM: In AAA_SendMsg
User: CAC-USERS
Pasw:
Resp:
grp_policy_ioctl(12f1b20, 114698, 1a870b4)
grp_policy_ioctl: Looking up CAC-USERS
callback_aaa_task: status = 1, msg =
AAA FSM: In aaa_backend_callback
aaa_backend_callback: Handle = 41, pAcb = 2ae115c
AAA task: aaa_process_msg(1a87a64) received message type 1
AAA FSM: In AAA_ProcSvrResp
Back End response:
------------------
Tunnel Group Policy Status: 1 (ACCEPT)
AAA FSM: In AAA_NextFunction
AAA_NextFunction: i_fsm_state = IFSM_TUNN_GRP_POLICY, auth_status =
ACCEPT
AAA_NextFunction: authen svr = <none>, author svr = AD-LDAP, user pol =
, tunn pol = CAC-USERS
AAA_NextFunction: New i_fsm_state = IFSM_DONE,
AAA FSM: In AAA_ProcessFinal
Checking time simultaneous login restriction for user 1234567890@mil
AAA FSM: In AAA_Callback
user attributes:
1 Tunnelling-Protocol(4107) 20 0
user policy attributes:
None
tunnel policy attributes:
1 Primary-DNS(4101) 4 IP: 10.0.10.100
2 Secondary-DNS(4102) 4 IP: 0.0.0.0
3 Tunnelling-Protocol(4107) 4 4
4 Default-Domain-Name(4124) 10 "ggsgseclab.org"
5 List of address pools to assign addresses from(4313) 10
"CAC-USERS"
Auth Status = ACCEPT
AAA API: In aaa_close
AAA task: aaa_process_msg(1a87a64) received message type 3
In aaai_close_session (41)
AAA API: In aaa_send_acct_start
AAA API: In aaa_send_acct_stop

Troubleshooting DAP

  • debug dap errors—Displays DAP errors

  • debug dap trace—Displays DAP function trace

Example 1: Allowed connection with DAP

This example shows the output of debug dap errors and debug dap trace during a successful connection with the scenario 3 shown in Appendix A. Notice multiple memberOf attributes. You can belong to both _ASAUsers and VPNUsers or tp either group, which depends on the ASA config.

Figure C3: debug DAP 
#debug dap errors
debug dap errors enabled at level 1
#debug dap trace
debug dap trace enabled at level 1
#
The DAP policy contains the following attributes for user:
1241879298@mil
-----------------------------------------------------------------------
---
1: action = continue
DAP_TRACE: DAP_open: C8EEFA10
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.1 = top
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.2 = person
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.3 =
organizationalPerson
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.4 = user
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.cn = 1241879298
DAP_TRACE: Username: 1241879298@mil,
aaa.ldap.physicalDeliveryOfficeName = NETADMIN
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.givenName = 1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.distinguishedName =
CN=1241879298,CN=Users,DC=ggsgseclab,DC=org
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.instanceType = 4
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.whenCreated =
20070626163734.0Z
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.whenChanged =
20070718151143.0Z
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.displayName = 1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.uSNCreated = 33691
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.memberOf.1 = VPNUsers
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.memberOf.2 = _ASAUsers
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.uSNChanged = 53274
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.department = NETADMIN
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.name = 1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectGUID =
....+..F.."5....
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.userAccountControl =
328192
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.badPwdCount = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.codePage = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.countryCode = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.badPasswordTime = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.lastLogoff = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.lastLogon = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.pwdLastSet =
128273494546718750
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.primaryGroupID = 513
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.userParameters = m:
d.
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectSid = ..
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.accountExpires =
9223372036854775807
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.logonCount = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.sAMAccountName =
1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.sAMAccountType =
805306368
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.userPrincipalName =
1241879298@mil
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectCategory =
CN=Person,CN=Schema,CN=Configuration,DC=ggsgseclab,DC=org
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.msNPAllowDialin = TRUE
DAP_TRACE: Username: 1241879298@mil, aaa.cisco.username =
1241879298@mil
DAP_TRACE: Username: 1241879298@mil, aaa.cisco.tunnelgroup = CAC-USERS
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["1"] = "top";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["2"] =
"person";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["3"] =
"organizationalPerson";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["4"] =
"user";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["cn"] = "1241879298";
DAP_TRACE:
dap_add_to_lua_tree:aaa["ldap"]["physicalDeliveryOfficeName"] =
"NETADMIN";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["givenName"] = "1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["distinguishedName"] =
"CN=1241879298,CN=Users,DC=ggsgseclab,DC=org";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["instanceType"] = "4";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["whenCreated"] =
"20070626163734.0Z";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["whenChanged"] =
"20070718151143.0Z";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["displayName"] =
"1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["uSNCreated"] = "33691";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["memberOf"]["1"] =
"VPNUsers";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["memberOf"]["2"] =
"_ASAUsers";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["uSNChanged"] = "53274";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["department"] = "NETADMIN";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["name"] = "1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectGUID"] contains
binary data
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["userAccountControl"] =
"328192";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["badPwdCount"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["codePage"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["countryCode"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["badPasswordTime"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["lastLogoff"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["lastLogon"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["pwdLastSet"] =
"128273494546718750";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["primaryGroupID"] = "513";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["userParameters"] contains
binary data
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectSid"] contains binary
data
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["accountExpires"] =
"9223372036854775807";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["logonCount"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["sAMAccountName"] =
"1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["sAMAccountType"] =
"805306368";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["userPrincipalName"] =
"1241879298@mil";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectCategory"] =
"CN=Person,CN=Schema,CN=Configuration,DC=ggsgseclab,DC=org";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["msNPAllowDialin"] = "TRUE";
DAP_TRACE: dap_add_to_lua_tree:aaa["cisco"]["username"] =
"1241879298@mil";
DAP_TRACE: dap_add_to_lua_tree:aaa["cisco"]["tunnelgroup"] = "CACUSERS";
DAP_TRACE: dap_add_to_lua_tree:endpoint["application"]["clienttype"] =
"IPSec";
DAP_TRACE: Username: 1241879298@mil, Selected DAPs: CAC-USERS
DAP_TRACE: dap_request: memory usage = 33%
DAP_TRACE: dap_process_selected_daps: selected 1 records
DAP_TRACE: Username: 1241879298@mil, dap_aggregate_attr: rec_count = 1
DAP_TRACE: Username: 1241879298@mil, DAP_close: C8EEFA10
d.

Example 2: Denied Connection with DAP

Thia example shows the output of debug dap errors and debug dap trace during an unsuccessful connection with the scenario 3 shown in Appendix A.

Figure C4: debug DAP 
#debug dap errors
debug dap errors enabled at level 1
#debug dap trace
debug dap trace enabled at level 1
#
The DAP policy contains the following attributes for user:
1241879298@mil
-----------------------------------------------------------------------
---
1: action = terminate
DAP_TRACE: DAP_open: C91154E8
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.1 = top
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.2 = person
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.3 =
organizationalPerson
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectClass.4 = user
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.cn = 1241879298
DAP_TRACE: Username: 1241879298@mil,
aaa.ldap.physicalDeliveryOfficeName = NETADMIN
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.givenName = 1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.distinguishedName =
CN=1241879298,CN=Users,DC=ggsgseclab,DC=org
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.instanceType = 4
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.whenCreated =
20070626163734.0Z
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.whenChanged =
20070718151143.0Z
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.displayName = 1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.uSNCreated = 33691
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.memberOf = DnsAdmins
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.uSNChanged = 53274
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.department = NETADMIN
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.name = 1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectGUID =
....+..F.."5....
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.userAccountControl =
328192
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.badPwdCount = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.codePage = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.countryCode = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.badPasswordTime = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.lastLogoff = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.lastLogon = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.pwdLastSet =
128273494546718750
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.primaryGroupID = 513
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.userParameters = m:
d.
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectSid = ..
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.accountExpires =
9223372036854775807
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.logonCount = 0
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.sAMAccountName =
1241879298
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.sAMAccountType =
805306368
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.userPrincipalName =
1241879298@mil
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.objectCategory =
CN=Person,CN=Schema,CN=Configuration,DC=ggsgseclab,DC=org
DAP_TRACE: Username: 1241879298@mil, aaa.ldap.msNPAllowDialin = TRUE
DAP_TRACE: Username: 1241879298@mil, aaa.cisco.username =
1241879298@mil
DAP_TRACE: Username: 1241879298@mil, aaa.cisco.tunnelgroup = CAC-USERS
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["1"] = "top";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["2"] =
"person";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["3"] =
"organizationalPerson";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectClass"]["4"] =
"user";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["cn"] = "1241879298";
DAP_TRACE:
dap_add_to_lua_tree:aaa["ldap"]["physicalDeliveryOfficeName"] =
"NETADMIN";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["givenName"] = "1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["distinguishedName"] =
"CN=1241879298,CN=Users,DC=ggsgseclab,DC=org";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["instanceType"] = "4";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["whenCreated"] =
"20070626163734.0Z";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["whenChanged"] =
"20070718151143.0Z";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["displayName"] =
"1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["uSNCreated"] = "33691";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["memberOf"] = "DnsAdmins";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["uSNChanged"] = "53274";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["department"] = "NETADMIN";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["name"] = "1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectGUID"] contains
binary data
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["userAccountControl"] =
"328192";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["badPwdCount"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["codePage"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["countryCode"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["badPasswordTime"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["lastLogoff"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["lastLogon"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["pwdLastSet"] =
"128273494546718750";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["primaryGroupID"] = "513";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["userParameters"] contains
binary data
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectSid"] contains binary
data
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["accountExpires"] =
"9223372036854775807";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["logonCount"] = "0";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["sAMAccountName"] =
"1241879298";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["sAMAccountType"] =
"805306368";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["userPrincipalName"] =
"1241879298@mil";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["objectCategory"] =
"CN=Person,CN=Schema,CN=Configuration,DC=ggsgseclab,DC=org";
DAP_TRACE: dap_add_to_lua_tree:aaa["ldap"]["msNPAllowDialin"] = "TRUE";
DAP_TRACE: dap_add_to_lua_tree:aaa["cisco"]["username"] =
"1241879298@mil";
DAP_TRACE: Username: 1241879298@mil, Selected DAPs:
DAP_TRACE: dap_request: memory usage = 33%
DAP_TRACE: dap_process_selected_daps: selected 0 records
DAP_TRACE: Username: 1241879298@mil, dap_aggregate_attr: rec_count = 1

Troubleshooting Certificate Authority / OCSP

  • debug crypto ca 3

  • In the config mode—logging class ca console(or buffer) debugging

These examples show a successful certificate validation with the OCSP responder and a failed certificate group matching policy.

Figure C3 shows the debug output that has a validated certificate and a working certificate group matching Policy.

Figure C4 shows the debug output of a mis-configured certificate group matching policy.

Figure C5 shows the debug output of a user with a revoked certificate.

Figure C5: OCSP debugging – successful certificate validation 
CRYPTO_PKI: Found a suitable authenticated trustpoint
ASDM_TrustPoint11.
CRYPTO_PKI: Allocated OCSP data handle 0xca2d27b8
CRYPTO_PKI: Certificate validation: Successful, status: 0. Attempting
to retrieve revocation status if necessary
CRYPTO_PKI: status = 0: poll revocation status
CRYPTO_PKI: Attempting to find OCSP override for peer cert: serial
number: 0F192B, subject name:
cn=MCGINTY.JIMMY.1160139435,ou=USN,ou=PKI,ou=DoD,o=U.S.
Government,c=US, issuer_name: cn=DOD JITC EMAIL CA-
15,ou=PKI,ou=DoD,o=U.S. Government,c=US.
CRYPTO_PKI: Processing map rules for SSL.
CRYPTO_PKI: Processing map SSL sequence 20...
CRYPTO_PKI: Match of subject-name field to map PASSED. Peer cert field:
= cn=MCGINTY.JIMMY.1160139435,ou=USN,ou=PKI,ou=DoD,o=U.S.
Government,c=US, map rule: subject-name ne "".
CRYPTO_PKI: Peer cert has been authorized by map: SSL sequence: 20.
CRYPTO_PKI: Found OCSP override match. Override URL:
http://198.154.68.90, Override trustpoint: ASDM_TrustPoint12
CRYPTO_PKI: crypto_pki_get_cert_record_by_subject()
CRYPTO_PKI: Destroying OCSP data handle 0xca2d27b8
Crypto CA thread sleeps!
CRYPTO_PKI: Attempting to find tunnel group for cert with serial
number: 0F192B, subject name:
cn=MCGINTY.JIMMY.1160139435,ou=USN,ou=PKI,ou=DoD,o=U.S.
Government,c=US, issuer_name: cn=DOD JITC EMAIL CA-
15,ou=PKI,ou=DoD,o=U.S. Government,c=US.
CRYPTO_PKI: Processing map rules for DefaultCertificateMap.
CRYPTO_PKI: Processing map DefaultCertificateMap sequence 10...
CRYPTO_PKI: Match of subject-name field to map PASSED. Peer cert field:
= cn=MCGINTY.JIMMY.1160139435,ou=USN,ou=PKI,ou=DoD,o=U.S.
Government,c=US, map rule: subject-name ne "".
CRYPTO_PKI: Peer cert has been authorized by map: DefaultCertificateMap
sequence: 10.
CRYPTO_PKI: Ignoring match on map DefaultCertificateMap, index 10 for
WebVPN group map processing. No tunnel group is configured.
CRYPTO_PKI: Peer cert could not be authorized with map:
DefaultCertificateMap.
CRYPTO_PKI: Processing map rules for SSL.
CRYPTO_PKI: Processing map SSL sequence 20...
CRYPTO_PKI: Match of subject-name field to map PASSED. Peer cert field:
= cn=MCGINTY.JIMMY.1160139435,ou=USN,ou=PKI,ou=DoD,o=U.S.
Government,c=US, map rule: subject-name ne "".
CRYPTO_PKI: Peer cert has been authorized by map: SSL sequence: 20.
CRYPTO_PKI: Ignoring match on map SSL, index 20 for WebVPN group map

Figure C5: Output of a failed certificate group matching policy

Figure C5: Output of a revoked certificate 
n %PI=X-3-7E17t02h7a Certinf icaHtue cnhta,in faioled uvalidation=.
CMertifiIcLa,ted ccha=inl ais eibtrhaer tin,valdid cor =noct
oamuthori,zed.
map rule: subject-name ne "".
CRYPTO_PKI: Peer cert has been authorized by map: DefaultCertificateMap
sequence: 10.
Tunnel Group Match on map DefaultCertificateMap sequence # 10.
Group name is CAC-USERS
CRYPTO_PKI: Checking to see if an identical cert is
already in the database...
CRYPTO_PKI: looking for cert in handle=2467668, digest=
CRYPTO_PKI: Cert record not found, returning E_NOT_FOUND
CRYPTO_PKI: Cert not found in database.
CRYPTO_PKI: Looking for suitable trustpoints...
CRYPTO_PKI: Found a suitable authenticated trustpoint trustpoint0.
CRYPTO_PKI: Certificate validation: Successful, status: 0. Attempting
to retrieve revocation status if necessary
CRYPTO_PKI: Attempting to find OCSP override for peer cert: serial
number: 2FB5FC74000000000035, subject name: cn=Ethan
Hunt,ou=MIL,dc=ggsgseclab,dc=org, issuer_name:
cn=ggsgseclab,dc=ggsgseclab,dc=org.
CRYPTO_PKI: Processing map rules for DefaultCertificateMap.
CRYPTO_PKI: Processing map DefaultCertificateMap sequence 10...
CRYPTO_PKI: Match of subject-name field to map PASSED. Peer cert field:
= cn=Ethan Hunt,ou=MIL,dc=ggsgseclab,dc=org, map rule: subject-name
ne "".
CRYPTO_PKI: Peer cert has been authorized by map: DefaultCertificateMap
sequence: 10.
CRYPTO_PKI: Found OCSP override match. Override URL:
http://ocsp.disa.mil, Override trustpoint: OCSP
CRYPTO_PKI: crypto_pki_get_cert_record_by_subject()
CRYPTO_PKI: Found a subject match
ERROR: Certificate validation failed, Certificate is revoked, serial
number: 2FB5FC74000000000035, subject name: cn=Ethan
Hunt,ou=MIL,dc=ggsgseclab,dc=org
CRYPTO_PKI: Certificate not validated

Appendix D – Verify LDAP Objects in MS

In Microsoft server 2003 CD, there are additional tools that can be installed in order to view the LDAP structure as well as the LDAP objects/attributes. In order to install these tools, go to the Support directory in the CD and then Tools. Install SUPTOOLS.MSI.

LDAP Viewer

  • After installation, choose Start > Run.

  • Type ldp, then click Ok. This starts the LDAP viewer.

  • Choose Connection > Connect.

  • Enter the server name and then click Ok.

  • Choose Connection > Bind.

  • Enter a username and password.

    Note: You need administrator rights.

  • Click OK.

  • View LDAP objects. See Figure D1.

    Figure D1: LDAP Viewer

    cac-anyconnect-vpn-53.gif

Active Directory Services Interface Editor

  • In the Active Directory server, choose Start > Run.

  • Type adsiedit.msc. This starts the editor.

  • Right click on an object and click Properties.

This tool shows all attributes for specific objects. See Figure D2.

Figure D2: ADSI Edit

cac-anyconnect-vpn-54.gif

Appendix E

An AnyConnect profile can be created and added to a workstation. The profile can reference various values such as ASA hosts or certificate matching parameters such as distinguished name or issuer. The profile is stored as an .xml file and can be edited with Notepad. The file can be added to each client manually or pushed from the ASA through a group policy. The file is stored in:

C:\Documents and Settings\All Users\Application Data\Cisco\Cisco
AnyConnect VPN Client\Profile

Complete these steps:

  1. Choose the AnyConnectProfile.tmpl and open the file with Notepad.

  2. Make appropriate modifications to the file such as issuer or host IP. See Figure F1 for example.

  3. When finished, save the file as an .xml.

This is a sample of a Cisco AnyConnect VPN Client Profile XML file.

Refer to the Cisco AnyConnect documentation in regards to profile management. In short:

  • A Profile should be uniquely named for your Company. An example is: CiscoProfile.xml

  • The profile name should be the same even if different for individual group within the company.

This file is intended to be maintained by a Secure Gateway administrator and then distributed with the client software. The profile based on this XML can be distributed to clients at any time. The distribution mechanisms supported are as a bundled file with the software distribution or as part of the automatic download mechanism. The automatic download mechanism only available with certain Cisco Secure Gateway products.

Note: Administrators are strongly encouraged to validate the XML profile they create with the use of an online validation tool or through the profile import functionality in ASDM. Validation can be accomplished with the AnyConnectProfile.xsd found in this directory. AnyConnectProfile is the root element that represents the AnyConnect Client Profile.

xml version="1.0" encoding="UTF-8" 
- - <AnyConnectProfile xmlns="http://schemas.xmlsoap.org/encoding/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://schemas.xmlsoap.org/encoding/
AnyConnectProfile.xsd">

!--- The ClientInitialization section represents global settings !--- for the client. In some cases, for example, BackupServerList, host specific !--- overrides are possible.
!--

-->
- <ClientInitialization>

!--- The Start Before Logon feature can be used to activate !--- the VPN as part of the logon sequence. !--- UserControllable: Does the administrator of this profile allow the user !--- to control this attribute for their own use. Any user setting !--- associated with this attribute is stored elsewhere.


-->
<UseStartBeforeLogon UserControllable="false">false</UseStartBeforeLogon>

!--- This control enables an administrator to have a one time !--- message displayed prior to a users first connection attempt. As an !--- example, the message can be used to remind a user to insert their smart !--- card into its reader. !--- The message to be used with this control is localizable and can be !--- found in the AnyConnect message catalog. !--- (default: "This is a pre-connect reminder message.") 



<ShowPreConnectMessage>false</ShowPreConnectMessage>

!-- This section enables the definition of various attributes !--- that can be used to refine client certificate selection.


-->
- <CertificateMatch>

!--- Certificate Distinguished Name matching allows for exact !--- match criteria in the choosing of acceptable client !--- certificates.


- <DistinguishedName>
- <DistinguishedNameDefinition Operator="Equal" Wildcard="Disabled">
<Name>ISSUER-CN</Name>
<Pattern>DoD-Issuer-ABC</Pattern>
</DistinguishedNameDefinition>
</DistinguishedName>
</CertificateMatch>
</ClientInitialization>
- 
!-- This section contains the list of hosts from which !--- the user is able to select.

- <ServerList>



!--- This is the data needed to attempt a connection to a specific !--- host.

-->
- <HostEntry>
<HostName>host-02</HostName>
<HostAddress>host-02.dod.gov</HostAddress>
</HostEntry>
- <HostEntry>
<HostName>host-01</HostName>
<HostAddress>192.168.1.1</HostAddress>
</HostEntry>
</ServerList>
</AnyConnectProfile>

Related Information

Revision History

Revision Publish Date Comments
1.0
07-May-2008
Initial Release

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