TITLE: FirePass URL Restriction Bypass
SECUNIA ADVISORY ID: SA23626
VERIFY ADVISORY: http://secunia.com/advisories/23626/
CRITICAL: Moderately critical
IMPACT: Security Bypass
WHERE: >From remote
OPERATING SYSTEM: FirePass 6.x http://secunia.com/product/13146/ FirePass 5.x http://secunia.com/product/4695/
DESCRIPTION: Michael Ligh and Greg Sinclair have reported a vulnerability in FirePass, which can be exploited by malicious people to bypass certain security restrictions.
The problem is that it is possible to bypass filters and access restricted URLs by using certain non-canonicalised URLs (e.g. by adding a NULL-byte, including additional slashes or dots, or using unicode-encoded characters in the request).
The vulnerability is reported in versions 6.0 and 5.4 through 5.5.2.
SOLUTION: FirePass 5.x: Reportedly fixed in Cumulative Hotfix 552-2.
FirePass 6.0: Reportedly fixed in Cumulative Hotfix 600-8.
PROVIDED AND/OR DISCOVERED BY: Michael Ligh and Greg Sinclair
ORIGINAL ADVISORY: http://lists.grok.org.uk/pipermail/full-disclosure/2007-January/051651.html
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