CVE-2004-0189 Information

Description

The \xx\ URL decoding function in Squid 2.5STABLE4 and earlier allows remote attackers to bypass url_regex ACLs via a URL with a NULL (\00) character which causes Squid to use only a portion of the requested URL when comparing it against the access control lists.

Reference

ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.16/SCOSA-2005.16.txt ftp://patches.sgi.com/support/free/security/advisories/20040404-01-U.asc http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000838 http://marc.info/?l=bugtraq&m=108084935904110&w=2 http://security.gentoo.org/glsa/glsa-200403-11.xml http://www.debian.org/security/2004/dsa-474 http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:025 http://www.osvdb.org/5916 http://www.redhat.com/support/errata/RHSA-2004-133.html http://www.redhat.com/support/errata/RHSA-2004-134.html http://www.securityfocus.com/bid/9778 http://www.squid-cache.org/Advisories/SQUID-2004_1.txt https://exchange.xforce.ibmcloud.com/vulnerabilities/15366 squid-urlregex-acl-bypass(15366) https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A877 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A941 The \xx
URL decoding function in Squid 2.5STABLE4 and earlier allows remote attackers to bypass url_regex ACLs via a URL with a NULL (\00) character which causes Squid to use only a portion of the requested URL when comparing it against the access control lists.