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VID 22312
Severity 20
Port 8080,3128
Protocol TCP
Class Webproxy
Detailed Description The Squid Web Proxy Cache server, according to its version number, has a denial of service vulnerability in the fakeauth NTLM authentication module. Squid is a freely available Web Proxy server for Linux and Unix distributions. Squid Web Proxy Cache versions 2.5.STABLE0 through 2.5.STABLE7 are vulnerable to a denial of service attack, caused by a memory leak in the NTLM fakeauth_auth helper. A remote attacker can send a specially crafted NTLM type 3 message to cause a segmentation fault. It will cause the affected Squid application to deny access to legitimate users.

* Note: This check solely relied on the version number of the remote Squid Web Proxy Cache server to assess this vulnerability, so this might be a false positive.

* References:
http://www.squid-cache.org/bugs/show_bug.cgi?id=1183
http://www.securitytracker.com/alerts/2005/Jan/1012818.html
http://www.squid-cache.org

* Platforms Affected:
National Science Foundation, Squid Web Proxy Cache 2.5
Linux Any version
Unix Any version
Recommendation Apply the squid-2.5.STABLE7-fakeauth_auth patch, available from the Squid Web Proxy Cache Web site at http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-fakeauth_auth.patch
Related URL CVE-2005-0097 (CVE)
Related URL 12220 (SecurityFocus)
Related URL 18818 (ISS)