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Cisco AnyConnect VPN Client Software Downgrade Code Execution (CVE-2012-2494)

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Check Point Reference: CPAI-2012-637
Date Published:
Severity:
Source: Cisco Advisory SA49645
Industry Reference(s): CVE-2012-2494
Protection Provided by: Security Gateway
  • R75
Who is Vulnerable?
Cisco Systems AnyConnect Secure Mobility Client 2.x prior to 2.5.6005
Cisco Systems AnyConnect Secure Mobility Client 3.0.x prior to 3.0.08057
Vulnerability Description
A software downgrade vulnerability has been reported in Cisco AnyConnect Secure Mobility Client.
Vulnerability Details
The vulnerability is due to improper validation of the vpndownloader version. A remote attacker could exploit this vulnerability by enticing a user to visit a specially crafted web page. Successful exploitation can result in arbitrary code execution in the context of the currently logged in user.

Protection Overview
This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R75 / R71 / R70

How Can I Protect My Network?

  1. In the IPS tab, click Protections and find the Cisco AnyConnect VPN Client Software Downgrade Code Execution protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: Cisco Protection Violation
Attack Information: Cisco AnyConnect VPN Client Software Downgrade Code Execution