Using the Host Input API
You can set up a custom Perl application to import data to the network map from a third-party application, using the host input API.
See the following sections for more information:
- Writing Host Input API Scripts
- Running a Host Input API Script
- Host Input API Functions
- Example Host Input API Scripts
Writing Host Input API Scripts
This chapter provides details on the syntax used to call each of the functions available using the host input API. When writing your script, make sure you include the elements indicated in the following sections:
You must call the host input module, set the source type, and obtain an application ID in the order indicated above.
Calling the Host Input Module
You must include a use
statement for the SF::SFDataCorrelator::HostInput
module, installed on the FireSIGHT System, before calling any host input functions in your script.
Include the following code segment in your script:
See Example: Invoking the Host Input Module for an example of this command used in a script.
Setting the Source Type
After you declare use of the HostInput
module, you must identify the source application for the data you import as “Application”
or “Scanner”
. The system marks the source for data imported using this designation as Scanner:
source_id or Application:
source_id. If you import scan results using this function, be sure to edit the source definition for the input source in your network discovery policy to set the identity source type to Scanner.For more information on setting the application or scanner name, see Obtaining a Source ID.
Include the following code segment in your script:
See Example: Setting the Source Type for an example of this command used in a script.
Obtaining a Source ID
Applications must set the application (or source) ID using the SetCurrentSource(
name )
function.
Use this syntax for the SetCurrentSource
function:
SetCurrentSource
($source_type_id,"CustomApp");
where “
CustomApp ”
is the application identification string you want to use to identify the imported data.
Include a code segment similar to the following in your script (using your application name in place of " CustomApp "):
SetCurrentSource
($source_type_id,"CustomApp");
GetCurrentSource
();
See Example: Setting the Source ID for an example of this command used in a script.
Required Fields
Each host input function requires either an address string (for specifying hosts by IPv4 or IPv6 address), an attribute list (for specifying IP hosts by attribute value), or a MAC list (for specifying MAC only hosts). The documentation for each function call indicates any additional required fields for that function.
Note that fields are required only in that you must supply that information to make sure that the host input succeeds and adds meaningful data to the network map. For example, you can add a fix to the system without providing a fix identification number or fix name that matches an existing Cisco fix definition and without mapping the third-party fix to a Cisco fix. However, even if that fix addresses vulnerabilities on the host where you added it, those vulnerabilities cannot be marked invalid if the system cannot map the fix to the vulnerabilities using a Cisco fix definition.
In general, supply as much information as possible for any data you import to ensure that the data can be used for data correlation.
Running a Host Input API Script
When you run your script, take the following requirements into account:
Application Privileges
To connect to the Host Input channel, applications must run with admin
privileges.
Setting a Third-Party Vulnerability Map
If you want to import data including third-party vulnerabilities and use that data for impact correlation, you must create a third-party vulnerability map set before importing the data.
You can create a map set in two ways: using the Defense Center web interface or using the AddScanResult
function. If you import scan results using this function, be sure to edit the source definition for the input source in your network discovery policy to set the identity source type to Scanner. The third-party map set allows the system to translate the third-party vulnerability ID to the corresponding vulnerability in the database. If you do not map a third-party vulnerability before import, the vulnerability does not map to a vulnerability ID and cannot be used for impact correlation.
For more information on mapping third-party vulnerabilities, see the FireSIGHT System User Guide.
Setting a Third-Party Product Map
When you import operating system or server data to a host, you can map third-party product name details to a Cisco product definition. You can create a third-party product map through the Defense Center web interface.
The third-party product map set allows the system to translate the third-party vendor, product, and version to the corresponding Cisco definition. When you set a third-party product map containing a server definition or an operating system definition, within the same script you can then define only the display strings for a third-party server or operating system when you add or set it using the API.
If you map third-party fixes to Cisco fix definitions using a third-party product map, set the product map, and then add fixes to hosts using the third-party fix name, the system maps the fixes to the appropriate Cisco fix definitions and deactivates vulnerabilities addressed by the fix.
To map a third-party product to a Cisco product definition:
1. Select Policies > Application Detectors, then click User Third-Party Mappings.
The User Third-Party Mappings page appears.
- To edit an existing map set, click Edit next to the map set.
- To create a new map set, click Create Product Map Set.
The Edit Third-Party Product Mappings page appears.
3. Type a name for the mapping set in the Mapping Set Name field.
4. Type a description in the Description field.
- To map a third-party product, click Add Product Map.
- To edit an existing third-party product map, click Edit next to the map set.
The Add Product Map page appears.
6. Type the vendor string used by the third-party product in the Vendor String field.
7. Type the product string used by the third-party product in the Product String field.
8. Type the version string used by the third-party product in the Version String field.
9. In the Product Mappings section, select the operating system, product, and versions you want to use for vulnerability mapping from the following lists (if applicable):
For example, if you want a host running a product whose name consists of third-party strings to use the vulnerabilities from Red Hat Linux 9, select Redhat, Inc. as the vendor, Redhat Linux as the product, and 9 as the version.
Once you have the third-party product map, you can import data using the SetOS
, SetService
, or AddService
functions. Note the third-party product name details and Cisco product definition before importing data.
To locate third-party and Cisco product details:
1. Select Policies > Application Detectors.
The Application Detectors page appears.
2. Select User Third-Party Mappings.
The Third-Party Product Mappings page appears.
3. Click the edit icon () for your product map set.
The Edit Third-Party Product Mappings page appears.
4. Click the edit icon () for your product map.
The Add Product Map pop-up window appears. Note the Vendor String, Product String, and Version String values.
For more information on mapping third-party products, see the FireSIGHT System User Guide.
Host Input API Functions
After you include the prerequisite calls required in a host input API script (as described in Writing Host Input API Scripts), you can call various host input functions to import the specific data you want to add to your network map. For more information, see the following sections:
- Host Functions
- Server Functions
- Client Application Functions
- Protocol Functions
- Package Fix Functions
- Host Attribute Functions
- Vulnerabilities Functions
- Third-Party Mapping Functions
- AddScanResult Function
Host Functions
You can use the host input API to add and remove hosts in the network map and to set operating system definitions for hosts.
For more information on host functions, see the following sections:
AddHost
You can use the AddHost
function to add a host to the network map. You can add an IP host (a host with an IP address and optionally a MAC address) or a MAC-only host (a host with only a MAC address). Because hosts created using the API are not tracked by the system, these hosts are not subject to the normal host timeout.
Note that you cannot create a MAC-only host for a MAC address if the system detects traffic which indicates that the MAC address is already mapped as a primary MAC address for an IP host in the network map.
See Example: Adding a Host to the Network Map for an example of this function used in a script.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Set the |
||
DeleteHost
You can use the DeleteHost
function to remove a host (or hosts) from the network map. You can remove an IP host (a host with an IP address and optionally a MAC address) by specifying either the IP address or the MAC address for the host. To remove a MAC-only host (a host with only a MAC address), indicate the MAC address as the $mac_list
value.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
A list of MAC address strings, with or without separating colons. |
SetOS
You can use the SetOS
function to specify the vendor, product, version, and mobile device information for the operating system for specified hosts. When you import operating system information, you set the display strings for the vendor, product, version, and mobile device information.
You can also map the third-party vendor, product, and version strings to a Cisco product definition. If you map third-party operating system names to a Cisco definition, the vulnerabilities for that operating system in the Cisco database map to the host where the third-party data was imported. If you have already created a third-party product map set using the Defense Center web interface, you can use the SetCurrent3rdPartyMap
function to use the values you specified in that map set for the third-party application strings and corresponding Cisco definitions, as described in SetCurrent3rdPartyMap.
The operating system identity displayed in a host profile is set by the highest priority source. Possible sources have the following priority order: user, scanner and application (set in the system policy), FireSIGHT, then NetFlow. Note that a new higher priority operating system identity will not override a current operating system identity if it has less detail than the current identity.
If you define a custom operating system for a host, the FireSIGHT System web interface indicates the source for the change in the Source Type field of the event view or the basic host information of the host profile.
See Example: Setting the Operating System on the Host for an example of this function used in a script.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
Contains a hash with keys describing the details of an operating system definition. |
If you set a current third-party map before calling |
The |
Keys for the $os Variable
The $os
variable is an OS definition hash that supports several keys. If you call the SetCurrent3rdPartyMap
function before calling the SetOS
function, note the third-party product name details and Cisco product definition when creating the third-party mapping. See Setting a Third-Party Product Map for more information.
You need only specify the vendor, product, and version strings for this function. Otherwise, the system assigns the most focused set of vulnerabilities it can using each piece of Cisco product definition detail you provide. For example, you could set the vendor_str
, product_str
, and version_str
keys to Microsoft
, Windows
, and 3.x
, respectively, then only set the vendor_id
, product_id
, and major
keys to the identification numbers for the vendor, product, and version for Microsoft
, Windows
, and 3
, respectively. All hosts where you set the operating system to Microsoft Windows 3.x would have all vulnerabilities for both Microsoft Windows 3.1 and Microsoft Windows 3.11.
For more information, see SetCurrent3rdPartyMap.
For more information on individual keys, see the tables that follow.
Use the following key to delete the user OS definition:
If the drop_user_product
value is set to 1, the SetOS
function deletes the existing user operating system definition from the host.
UnsetOS
The UnsetOS
function removes a user-added OS definition from the specified hosts. UnsetOS
does not remove an OS definition from a host if it was detected through FireSIGHT.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
Server Functions
You can update server information for hosts in the network map using the server functions.
For more information, see the following sections:
AddService
You can add a server to an existing host in the network map using the AddService
function.
The server identity displayed in a host profile is set by the highest priority source. Possible sources have the following priority order: user, scanner and application (set in the system policy), FireSIGHT, then NetFlow. Note that a new higher priority operating server identity will not override a current operating server identity if it has less detail than the current identity.
See Example: Adding a Server to the Host for an example of this function used in a script.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
Contains a hash with keys describing the details of a server definition. |
If you set a current |
The |
SetService
You can use the SetService
function to specify the server protocol, vendor, product, and version for a specified server. You can set display strings for the server using $service
keys. By mapping a third-party product in the Defense Center web interface or using the SetCurrent3rdPartyMap
function (see SetCurrent3rdPartyMap), you can associate third-party server data with the vulnerability information for specific Cisco product definitions.
If the server protocol does not already exist, this call causes a new server identity to be created for the string. If the specified server does not already exist, the system creates it.
The server identity displayed in a host profile is set by the highest priority source. Possible sources have the following priority order: user, scanner and application (set in the system policy), FireSIGHT, then NetFlow. Note that a new higher priority server identity will not override a current server identity if it has less detail than the current identity.
If you create a custom server definition for a host, the FireSIGHT System web interface indicates the source for the change in the Source Type field of the Servers table view of events or the Servers section of the host profile.
Note: If the number of servers stored in the network map for a specific host exceeds 100, new server information is ignored until servers are deleted from the host.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
Contains a hash with keys describing the details of a server definition. |
If you set a current third-party map before calling |
The |
UnsetService
You can use the UnsetService
function to remove user-added server definitions from a specified host. UnsetService
does not remove any server definitions detected through FireSIGHT.
Note: If the number of servers stored in the network map for a specific host exceeds 100, new server information is ignored until servers are deleted from the host.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Either the strings |
DeleteService
You can use the DeleteService
function to remove a server from a specified host. You must specify the port and protocol of the server to be deleted.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
Either the strings |
Service Keys
The $service
variable is a server definition hash that supports several keys.
If you do not set either the service_name
or the service_id
value, the server displays as “unknown”
in the web interface.
If you call the SetCurrent3rdPartyMap
function before calling the SetOS
function, note the third-party product name details and Cisco product definition when creating the third-party mapping. See Setting a Third-Party Product Map for more information.
You need only specify the vendor, product, and version strings for this function. Otherwise, the system assigns the most focused set of vulnerabilities it can using each piece of Cisco product definition detail you provide. For example, if you use this function to set a server definition on a host by setting the vendor_str
, product_str
, and version_str
keys to Apache, Tomcat, and 4.x, respectively, then only set the vendor_id
, product_id
, and major
keys to the identification numbers for Apache, Tomcat, and 4, respectively, that host will have all vulnerabilities for both Apache Tomcat 4.0 and Apache Tomcat 4.1.
Use the following key to delete an existing user server definition:
If the drop_user_product
value is set to 1, the existing user server definition is deleted from the host.
When you set a string value for a key in the hash, enclose that value in single quotes.
The following tables provide information on the keys you can use with the $service
field.
Use this key to supply the server vendor display name used by the third-party application. |
||
Use this key to supply the server version display name used by the third-party application. |
Client Application Functions
You can use the client application functions to modify client application data for hosts in the network map. You can locate client application names in the Application Filters page.
To locate client application names and types:
Access: Admin/Access Admin/Network Admin
1. Select Objects > Object Management.
The Object Management page appears.
The Application Filters section appears.
3. Click Add Application Filter.
The Application Filter pop-up window appears.
4. Select Client Application in the Application Filters list to retrieve the list of client applications.
The Available Applications list displays client application names.
For more information, see the following sections:
AddClientApp
You can use the AddClientApp
function to add client applications to existing hosts in the network map. If the client application name does not already exist in the Cisco database, the system creates a new entry for the client application.
The client application identity displayed in a host profile is set by the highest priority source. Possible sources have the following priority order: user, scanner and application (set in the system policy), FireSIGHT, then NetFlow. Note that a new higher priority client application identity will not override a current client application identity if it has less detail than the current identity.
See Example: Adding a Client Application to Multiple Hosts for an example of this function used in a script.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
A string consisting of alphanumeric characters or spaces, enclosed in double quotes. For existing applications, corresponds to ID values in the database. The system looks up the ID to see if it matches an existing client application ID. If it does not, a new ID is created. |
|||
A string consisting of alphanumeric characters or spaces, enclosed in double quotes. |
DeleteClientApp
You can use the DeleteClientApp
function to remove a client application from the specified host.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
A string consisting of alphanumeric characters or spaces, enclosed in double quotes. For existing applications, corresponds to ID values in the database. The system looks up the ID to see if it matches an existing client application ID. If it does not, a new ID is created. |
|||
A string consisting of alphanumeric characters or spaces, enclosed in double quotes. |
DeleteClientAppPayload
You can use the DeleteClientAppPayload
function to remove a web application from the specified host.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
A string consisting of alphanumeric characters or spaces, enclosed in double quotes. For existing applications, corresponds to ID values in the database. The system looks up the ID to see if it matches an existing client application ID. If it does not, a new ID is created. |
|||
A string consisting of alphanumeric characters or spaces, enclosed in double quotes. |
|||
A string consisting of alphanumeric characters or spaces, enclosed in double quotes. For existing applications, corresponds to ID values in the database. The system looks up the ID to see if it matches an existing client application ID. If it does not, a new ID is created. |
Protocol Functions
You can use the protocol functions to update protocol information for hosts in the network map.
For more information, see the following sections:
DeleteProtocol
You can use the DeleteProtocol
function to remove a protocol from the specified IP or MAC host.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
A list of MAC address strings, with or without separating colons. |
|||
Indicates the identification string or name of the protocol to be deleted. |
Valid protocol names consisting of alphanumeric characters or spaces, enclosed in double quotes. For transport protocols (“ |
||
AddProtocol
You can use the AddProtocol
function to add either a network or transport protocol to an existing host in the network map. You can supply either a protocol ID, a transport protocol name that exists in the /etc/protocols
file on your Defense Center, or a network protocol name from Network Protocol Values.
Note: You cannot add transport protocols to MAC-only hosts.
See Example: Adding a Protocol to the Host for an example of this function used in a script.
Note you should set the |
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Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
A list of MAC address strings, with or without separating colons. |
|||
Indicates the identification string or name of the protocol to be added. |
Valid protocol names consisting of alphanumeric characters or spaces, enclosed in double quotes. For transport protocols (“ |
||
Package Fix Functions
You can use the Package Fix functions to apply or remove fixes for hosts in your network map.
For more information, see the following sections:
AddFix
You can use the AddFix
function to map a fix to a specified host or server. You can map a fix using a fix ID or a fix name from the Cisco vulnerability database (VDB), or using a third-party fix that you map to a fix in the VDB using the Defense Center web interface.
Note: You can also specify fixes with the SetOS
and SetService
functions. If a fix list is supplied using one of these functions the supplied fix list replaces the existing fix list for the host or server.
When you apply a fix to a host or server, the vulnerability mappings for the system are adjusted and the fixed vulnerabilities are marked as Invalid in the web interface and are not used for impact assessment. However, note that if the applied fix is not applicable to the operating system or server identity the fix has no effect.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
A list of MAC address strings, with or without separating colons. |
|||
With the |
Integers in the range of 1-65535, enclosed in double quotes. |
||
With the |
Either the strings |
||
A Cisco fix identification number or a third-party fix name, enclosed in double quotes, defined in a third-party product map that you use by calling the |
RemoveFix
You can use the RemoveFix
function to remove a fix mapping from the specified host or server. When you remove a fix, vulnerability mappings are updated accordingly.
Note: You can also specify fixes using the SetOS
and SetService
functions.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
With the |
Integers in the range of 1-65535, enclosed in double quotes. |
||
With the |
Either the strings |
||
A Cisco fix identification number or a third-party fix name, enclosed in double quotes, defined in a third-party product map that you use by calling the |
Host Attribute Functions
For more information, see the following sections:
AddHostAttribute
You can use the AddHostAttribute
function to add text or URL attributes.
Note that adding a host attribute does not add a value for the attribute. For more information on setting an attribute value, see SetAttributeValue.
where attributename is the name of the attribute (consisting of alphanumeric characters and spaces) and attributetype is the type of attribute ( text
or URL
).
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
|||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
DeleteHostAttribute
You can use the DeleteHostAttribute
function to delete attributes.
where attributename is the name of the attribute (consisting of alphanumeric characters and spaces.)
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
SetAttributeValue
You can use the SetAttributeValue
function to set the value of an existing attribute to the specified value for the specified hosts. This function can set the value of user-defined host attributes and the Criticality attribute. You can use this function to set the host criticality by using “criticality”
as the attribute $id
.
See Example: Setting the Host Criticality for an example of this function used in a script.
Note you should set the |
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Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
Valid attribute names consisting of alphanumeric characters or spaces, enclosed in double quotes. |
|||
Valid attribute values for the named attribute, consisting of alphanumeric characters or spaces, enclosed in double quotes. If a value is passed in for a list attribute, |
DeleteAttributeValue
You can use the DeleteAttributeValue
function to remove an attribute value for a host.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
Valid attribute names consisting of alphanumeric characters or spaces, enclosed in double quotes. |
SetCriticality
You can use the SetCriticality
function to set the criticality level for a host.
Note you should set the |
|||
Indicates the source ID for the source adding the host input. |
Note you should set the |
||
Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
||
Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
||
The identification number or string for the criticality level: |
Vulnerabilities Functions
You can use the vulnerabilities functions to update the status of vulnerabilities on a host.
For more information, see the following sections:
SetInvalidVulns
You can use the SetInvalidVulns
function to deactivate vulnerabilities on a host or set of hosts. For the function call to be effective, the vulnerability must exist on the host and be set to valid. When you use SetInvalidVulns
to deactivate a third-party vulnerability for a host, it deletes the vulnerability from the host.
Note you should set the |
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Indicates the source ID for the source adding the host input. |
Note you should set the |
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Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
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Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
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Supplies information about the vulnerability to be set to invalid. |
Uses a hash of vulnerability keys to set vulnerability information. For more information, see Vulnerability Keys. |
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For more information on mapping third-party vulnerabilities, see the FireSIGHT System User Guide or see SetCurrent3rdPartyMap. |
SetValidVulns
You can use the SetValidVulns
function to activate vulnerabilities on a host or set of hosts. Once you set a vulnerability as Valid for a host, Defense Center assigns a red impact to the event if the SID in the event is mapped to the valid vulnerability. For the function call to be effective for a Cisco vulnerability, it must exist on the host and be set to invalid. When you use SetValidVulns
to activate a third-party vulnerability for a host, it adds the vulnerability to the host.
Note you should set the |
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Indicates the source ID for the source adding the host input. |
Note you should set the |
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Indicates the string containing the IP address or addresses for the affected hosts. |
A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
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Indicates the host attribute or attributes specifying the hosts affected by the host input. |
A list of attribute value hash pairs of the format: Note that |
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Supplies information about the vulnerability to be activated. |
Uses a hash of vulnerability keys to set vulnerability information. For more information, see Vulnerability Keys. |
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For more information on mapping third-party vulnerabilities, see the FireSIGHT System User Guide or see SetCurrent3rdPartyMap. |
Vulnerability Keys
The $vulns
field for the SetValidVulns
and the SetInvalidVulns
functions and the $mapping_vuln_list
field for the AddScanResult
function use a vulnerability definition hash with some or all of the keys defined in the following tables.
Because you can map vulnerabilities to multiple servers running on a system, the port
and proto
information must be provided in order to mark server vulnerabilities.
The following tables provide information on the keys you can use with the $vulns
and $mapping_vuln_list
fields.
A comma-separated list of CVE IDs, with each ID enclosed in single quotes. If this field, Use this key to specify the CVE ID for any vulnerabilities on the hosts. |
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A comma-separated list of BugTraq IDs, with each ID enclosed in single quotes. If this field, Use this key to specify the BugTraq ID for any vulnerabilities on the hosts. |
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A string, enclosed in single quotes. If this field, bugtraq_ids, and cve_ids are empty, this is a generic scan result. Use this key to indicate the vulnerability ID for the vulnerability. For third-party vulnerabilities, note that you must map the third-party vulnerability ID and reference the vulnerability map set in the |
Use this key to supply the vulnerability name used by the third-party application. |
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Use this key to supply the vulnerability description used by the third-party application. |
Third-Party Mapping Functions
You can use the third-party mapping functions to invoke a set of product mappings on a host. When you invoke a map set, mappings from third-party application names to Cisco product definitions apply for hosts affected by any following function calls in your script. When you unset a product map, the settings on the host revert to Unidentified
.
For more information, see the following sections:
SetCurrent3rdPartyMap
You can use this function to set the current third-party map for the current session. You create third-party mappings using the Defense Center web interface to set up a reusable map between each third-party vendor, product, and version combination and the corresponding Cisco product definition. If you set a third-party map and then add or set host operating system or server data that includes third-party application names included in the map, the system uses the mappings to map the Cisco product definition, and associated vulnerabilities, to each host where the input occurs.
For instance, you could create a map set called “Custom Utility”
, in which you could define the third-party strings as follows:
You could select the following Cisco product mapping in the map set:
If you set this product map by calling SetCurrent3rdPartyMap(“Custom Utility”)
, it maps “Microsoft Win2k”
to the VDB entry for the “Microsoft Windows 2000 SP3”
product.
If you want to import host data for a host operating system, you can then call the SetOS
function and only specify the vendor, product, and version string. The host input API processor automatically converts the strings specified in the product map into the VDB parameters mapped to those strings. See Setting a Third-Party Product Map for more information on creating 3rd party mapping sets.
See Example: Setting the Operating System on the Host for an example of this function used in a script.
where $map_name
is the name of the third-party product map, enclosed in double quotes, that you created using the Defense Center web interface.
UnsetCurrent3rdPartyMap
This function unsets the current active third-party map.
AddScanResult Function
This function adds scan results from a third-party vulnerability scanner and maps each vulnerability to a BugTraq or CVE ID.
If you import a scan result with a vulnerability for a server on a host, but do not use AddService
to import the server to the host, the application protocol for the server will show a value of unknown
in the host profile. If you import scan results using this function, be sure to edit the source definition for the input source in your network discovery policy to set the identity source type to Scanner.
For examples of how to use AddScanResult
in a script, see Example: Adding a Scan Result to a Host, Example: Adding a Generic Scan Result to a Host, and Full Example Script.
Indicates the scanner ID for the scanner that obtained the scan results. |
where To add scan results from a previously used scanner, indicate the specific scanner name listed in system policies on the Defense Center where you added the results. Adding results from a new scanner ID adds that scanner to the system policy. New scanners are added as the lowest priority by default. If you want to change the priority of the scanner, you can do so in the system policy. For more information, see the FireSIGHT System User Guide. |
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A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
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Indicates scan results with vulnerability IDs for the affected hosts. |
A list of vulnerability hash values of the format: Note that Uses a hash of vulnerability keys to set vulnerability information. For more information, see Vulnerability Keys. |
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Indicates scan results without vulnerability IDs for the affected hosts. |
A list of vulnerability hash values of the format: Note that Uses a hash of vulnerability keys to set vulnerability information. For more information, see Vulnerability Keys. |
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The number for the action to be performed:
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DeleteScanResult
This function deletes scan results from a third-party vulnerability scanner and maps each vulnerability to a BugTraq or CVE ID.
For examples of how to use DeleteScanResult
in a script, see Example: Deleting a Scan Result from a Host and Full Example Script.
Indicates the scanner ID for the scanner that obtained the scan results. |
where To add scan results from a previously used scanner, indicate the specific scanner name listed in system policies on the Defense Center where you added the results. Adding results from a new scanner ID adds that scanner to the system policy. New scanners are added as the lowest priority by default. If you want to change the priority of the scanner, you can do so in the system policy. For more information, see the FireSIGHT System User Guide. |
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A comma-separated list of IP addresses, CIDR blocks, and ranges of IP addresses, with each address, block, or range enclosed in double quotes. |
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Indicates scan results with vulnerability IDs for the affected hosts. |
A list of vulnerability hash values of the format: Note that Uses a hash of vulnerability keys to set vulnerability information. For more information, see Vulnerability Keys. |
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Indicates scan results without vulnerability IDs for the affected hosts. |
A list of vulnerability hash values of the format: Note that Uses a hash of vulnerability keys to set vulnerability information. For more information, see Vulnerability Keys. |
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The number for the action to be performed:
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Example Host Input API Scripts
The following code samples illustrate how you might construct a script to import data using the host input API.
The following sections, in sequential order, show each portion of the script:
- Example: Invoking the Host Input Module
- Example: Setting the Source Type
- Example: Setting the Source ID
- Example: Adding a Host to the Network Map
- Example: Setting the Operating System on the Host
- Example: Adding a Protocol to the Host
- Example: Adding a Server to the Host
- Example: Setting the Host Criticality
- Example: Adding a Client Application to Multiple Hosts
- Example: Adding a Scan Result to a Host
- Full Example Script
Example: Invoking the Host Input Module
The example script starts by declaring the use of the HostInput Perl module:
Example: Setting the Source Type
The example script next initiates the $source_type_id
variable and sets it to Scanner
:
This source type value is used in most of the host input function calls. In host input events resulting from this input function, the Source Type lists as Application
.
Example: Setting the Source ID
After the $source_type_id
value is set, the example script uses the GetSourceAppIDByName
function to set the $source_id
value to AssetManageApp
:
SetCurrentSource
($source_type_id,"CustomApp");
GetCurrentSource
();
This source ID value is used in most of the host input function calls. In host input events resulting from this input function, the Source Type lists as Application: AssetManageApp
.
Example: Adding a Host to the Network Map
After the script establishes use of the HostInput
module and sets the source type and source id values, it can begin to import data. The first import function called is the AddHost
function.
Note that in addition to the IP address, the function sets a primary MAC address of 01:02:03:04:05:06.
Example: Setting the Operating System on the Host
After the script adds the host, it sets the operating system value for the host. To simplify the SetOS
call, a product map called Asset Management App
is created using the Defense Center web interface:
The Asset Management App map set contains a product map mapping the third-party product name Microsoft Win2K
to the Cisco product definition for Microsoft Windows 2000 SP3:
The script sets the product map to “Asset Management App”
:
The script then uses the vendor_str
and product_str
keys to set the operating system display name to Microsoft Windows 2000
, mapping that third-party operating system name to the Cisco product definition as defined in the Asset Management App
product map set because the product map set is already in effect:
}
Example: Adding a Protocol to the Host
The script next adds the ospf
protocol to the 1.2.3.4
host. Note that the protocol type for the protocol is “xport”
.
Example: Adding a Server to the Host
The script then uses the AddService
function to add the OpenSSH
server to the 1.2.3.4
host:
Note that the $service
hash is used to set the port to 22
, the protocol to tcp
, the vendor display string to OpenSSH
, the version display string to 4.1
, and the server name to ssh
.
Example: Setting the Host Criticality
Next, the SetAttributeValue
function is used to set the host criticality for the 1.2.3.4
host to Medium:
Note that the attribute name is set to “ Criticality”
and the attribute value is set to “medium”
.
Example: Adding a Client Application to Multiple Hosts
Finally, the script adds a client application named BMC Remedy
to every host with a Medium criticality.
BMC Remedy
", "Asset Manager", "0.0"))
Note that the client application ID is set to BMC Remedy
, the client application type is set to Asset Manager
, and the version is set to 0.0
.
Example: Adding a Scan Result to a Host
The script adds the scan results from a third-party scanner that scanned host 1.2.3.4
to the network map.
Example: Adding a Generic Scan Result to a Host
The script adds a generic scan result to the network map.
Example: Deleting a Scan Result from a Host
The script deletes a scan result from the network map.
Full Example Script
The full script explained in the sections above looks like this: