CVE-2011-2039

Description

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.

Affected products

• Cisco / anyconnect_secure_mobility_client2.3
• Cisco / anyconnect_secure_mobility_client2.0 – 2.0
• Cisco / anyconnect_secure_mobility_client2.1 – 2.1
• Cisco / anyconnect_secure_mobility_client2.2 – 2.2
• Cisco / anyconnect_secure_mobility_client2.2.128 – 2.2.128
• Cisco / anyconnect_secure_mobility_client2.2.133 – 2.2.133
• Cisco / anyconnect_secure_mobility_client2.2.136 – 2.2.136
• Cisco / anyconnect_secure_mobility_client2.2.140 – 2.2.140

Exploits & proofs of concept

• exploit-dbCisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit)by Metasploit

References

• MISChttp://osvdb.org/72714
• VENDOR_ADVISORYhttp://www.cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml
• MISChttp://securityreason.com/securityalert/8272
• MISChttp://www.securitytracker.com/id?1025591
• MISChttp://www.kb.cert.org/vuls/id/490097
• MISChttp://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909
• MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/67739