Cisco Secure Access Control System contains a vulnerability that could allow an authenticated, remote attacker to access sensitive information. Updates are available.
An issue in the web interface of Cisco Secure Access Control System (ACS) could allow an authenticated, remote attacker to view detailed error message information.
The issue is due to insufficient filtering of error condition output. An attacker could exploit this issue by forcing the system to generate an error condition.
Cisco has confirmed this vulnerability in a security notice and released software updates.
At the time this alert was first published, Cisco ACS 220.127.116.11.3 and prior were vulnerable. Later releases of Cisco ACS may also be affected.
To exploit this vulnerability, an attacker must authenticate to a targeted device. This access requirement decreases the likelihood of a successful exploit.
Cisco has released a security notice at the following link: CVE-2013-3428
Customers should refer to Cisco bug ID CSCue65957 for the most complete list of affected product versions.
An authenticated, remote attacker could exploit this vulnerability to view error message information. A successful exploit could be used to conduct further attacks.
The vulnerability is due to insufficient filtering of error condition output messages by the affected software.
An authenticated, remote attacker could exploit this vulnerability by forcing an affected system to generate an error condition. If successful, the attacker could view sensitive information on the error message that could be used to conduct further attacks.
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 should contact their Cisco support team for assistance in upgrading to a software version 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 firstname.lastname@example.org 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.