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TITLE:
Cisco ASA and PIX VPN Authentication Bypass

SECUNIA ADVISORY ID:
SA32360

VERIFY ADVISORY:
http://secunia.com/advisories/32360/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass

WHERE:
>From remote

OPERATING SYSTEM:
Cisco Adaptive Security Appliance (ASA) 7.x
http://secunia.com/advisories/product/6115/
Cisco Adaptive Security Appliance (ASA) 8.x
http://secunia.com/advisories/product/16163/
Cisco PIX 7.x
http://secunia.com/advisories/product/6102/
Cisco PIX 8.x
http://secunia.com/advisories/product/16164/

DESCRIPTION:
A vulnerability has been reported in Cisco ASA and PIX appliances,
which can be exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to an unspecified error, which can be
exploited to bypass the VPN authentication in Cisco ASA or Cisco PIX
security appliances.

Successful exploitation requires that the device is configured for
IPSec or SSL-based remote access VPN using Microsoft Windows NT
Domain authentication.

SOLUTION:
Update to fixed versions (please see the vendor's advisory for
details).

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
Cisco:
http://www.cisco.com/warp/public/707/cisco-sa-20081022-asa.shtml

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