Cisco Secure Access Control System contains a vulnerability that could allow an authenticated, remote attacker to gain access to sensitive information. Updates are available.
A vulnerability in the role-based access control code of the Cisco Secure Access Control System (ACS) could allow an authenticated, remote attacker to access support bundle information.
The vulnerability is due to a failure to check the user privileges correctly when downloading the support bundle. An attacker could exploit this vulnerability by downloading the support bundle without the appropriate user privileges. An exploit could allow the unprivileged attacker to download the support bundle and access sensitive information such as the user database.
Cisco has confirmed the vulnerability in a security notice and released software updates.
At the time this alert was first published, Cisco ACS Releases 5.4 (.0.46.3) and prior were vulnerable. Later releases of Cisco ACS may also be vulnerable.
To exploit this vulnerability, an attacker must authenticate to the affected device. The 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 has released a security notice at the following link: CVE-2013-6695
Customers are advised to consult Cisco bug ID CSCuj39274 for the most complete list of affected product versions.
An authenticated, remote attacker could exploit this vulnerability to gain access to sensitive information, such as the user database on an affected device. A successful exploit could be used to conduct additional attacks.
The vulnerability exists because of a failure to correctly check user privileges within the role-based access control code of the affected software when downloading the support bundle.
An authenticated, remote attacker could exploit this vulnerability by downloading the support bundle without the appropriate user privileges. An exploit could allow the attacker to download the support bundle and access sensitive information, such as the user database.
Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
Cisco customers with active contracts should contact their Cisco support team for assistance in upgrading to a software release that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at email@example.com for assistance.
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.