Vulnerability CVE-2011-2039
Published: 2011-06-02   Modified: 2012-02-13

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.

See advisories in our WLB2 database:
Topic
Author
Date
High
Cisco AnyConnect VPN Client ActiveX URL Property Download and Execute
metasploit
10.06.2011

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:H/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.6/10
10/10
4.9/10
Exploit range
Attack complexity
Authentication
Remote
High
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Cisco -> Anyconnect secure mobility client 

 References:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909
http://securityreason.com/securityalert/8272
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml
http://www.kb.cert.org/vuls/id/490097
http://www.securitytracker.com/id?1025591
https://exchange.xforce.ibmcloud.com/vulnerabilities/67739
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