Cisco Security Advisory
Click Icon to Copy Verbose Score
AV:N/AC:M/Au:N/C:P/I:N/A:N/E:F/RL:U/RC:C
-
Cisco ASA 5500 Series Adaptive Security Appliance firmware contains a vulnerability that could allow an unauthenticated, remote attacker to access sensitive information on a targeted system.
The vulnerability is due to improper proxy authentication during attempts to cut through a targeted system. An unauthenticated, remote attacker could exploit this vulnerability to access sensitive information by tricking a user into authenticating to the system. If successful, the attacker could use this information to launch further attacks.
Cisco has confirmed this vulnerability and released software updates.
To exploit this vulnerability, an attacker would need to access trusted, internal networks. This access requirement decreases the likelihood of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
-
Cisco confirmed bug ID CSCtx42746 in the following release notes: Cisco ASA Interim Release Notes
-
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to allow only privileged users to access administration or management systems.
Administrators are advised to monitor affected systems.
-
Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via e-mail at tac@cisco.com.
-
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
-
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
-
Show LessVersion Description Section Status Date 1.0 Initial Release NA Final 2012-May-16
-
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A stand-alone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy, and may lack important information or contain factual errors. The information in this document is intended for end-users of Cisco products.