Cisco reveals multiple Clean Access flaws

Cisco Systems has reported multiple privilege-escalation vulnerabilities affecting the networking giant's Clean Access software solution. The flaws could be exploited by attackers to "bypass security restrictions or gain knowledge of sensitive information," according to a French Security Incident Response Team (FrSIRT) advisory. The first flaw is caused by the improper configuration of a secret shared by the Cisco Clean Access Manager (CAM) and Clean Access Server (CAS). The second is caused when manual database backups, or snapshots, stored on the CAM are given predictable filenames.

According to a Cisco advisory, backups taken on CAM are "not encrypted or otherwise protected."

FrIST rated the vulnerabilities "high risk," while Secunia assigned them a "moderately critical" rating.

There are no workarounds, although the Cisco advisory suggests administrators remove "readable snapshot files" soon after they are created.