Cisco Video Communications Server CVE-2011-2538 Unspecified Remote Command Execution Vulnerability

Description

Cisco Video Communications Server is prone to an unspecified remote command-execution vulnerability because it fails to sufficiently validate user-input supplied. An attacker may exploit this issue to execute arbitrary commands within the context of the affected application,this may aid in further attacks. Cisco TelePresence Video Communication Server versions prior to 7.0.3 are vulnerable.

Technologies Affected

• Cisco TelePresence Video Communication Server (VCS) X7.0
• Cisco TelePresence Video Communication Server (VCS) X7.0.1

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of successful exploits.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic

Run all software as a nonprivileged user with minimal access rights.
To limit the impact of latent vulnerabilities, configure database servers and other applications to run as a nonadministrative user with minimal access rights.

Updates are available. Please see the references or vendor advisory for more information.