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TITLE:
Cisco ASA WebVPN Bookmark URLs Security Bypass

SECUNIA ADVISORY ID:
SA37710

VERIFY ADVISORY:
http://secunia.com/advisories/37710/

DESCRIPTION:
David Eduardo Acosta Rodriguez has reported a security issue in Cisco
ASA, which can be exploited by malicious users to bypass certain
security restrictions.

The security issue is caused due to the appliance allowing
administrators the option to limit web access via the VPN through
obfuscated bookmark URLs. This can be exploited to access apparently
restricted URLs obfuscated using the ROT13 cipher.

SOLUTION:
Apply web access control lists to group-policies and Dynamic Access
Policies. Please see the vendor's advisory for details.

PROVIDED AND/OR DISCOVERED BY:
David Eduardo Acosta Rodriguez, ISecAuditors

ORIGINAL ADVISORY:
ISecAuditors:
http://archives.neohapsis.com/archives/fulldisclosure/2009-12/0385.html

Cisco:
http://tools.cisco.com/security/center/viewAlert.x?alertId=19609

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