National Cyber Awareness System
Vulnerability Summary for CVE-2011-2039
Original release date:06/02/2011
Last revised:09/22/2011
Source:
US-CERT/NIST
Overview
The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.3.185 on Windows, and on Windows Mobile, downloads a client executable file (vpndownloader.exe) without verifying its authenticity, which allows remote attackers to execute arbitrary code via the url property to a certain ActiveX control in vpnweb.ocx, aka Bug ID CSCsy00904.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
4.9
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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US-CERT Vulnerability Note: VU#490097
Name: VU#490097
External Source: XF
Name: cisco-asmc-helper-code-execution(67739)
External Source: SECTRACK
Name: 1025591
External Source: CISCO
Name: 20110601 Multiple Vulnerabilities in Cisco AnyConnect Secure Mobility Client
Type: Advisory
External Source: SREASON
Name: 8272
External Source: OSVDB
Name: 72714
External Source: IDEFENSE
Name: 20110601 Cisco AnyConnect VPN Client Arbitrary Program Execution Vulnerability
