ModSecurity before 2.6.6, when used with PHP, does not properly...

Vulnerability Description

ModSecurity before 2.6.6, when used with PHP, does not properly handle single quotes not at the beginning of a request parameter value in the Content-Disposition field of a request with a multipart/form-data Content-Type header, which allows remote attackers to bypass filtering rules and perform other attacks such as cross-site scripting (XSS) attacks. NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-5031.

References

• http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
• http://www.securityfocus.com/bid/54156
• http://www.debian.org/security/2012/dsa-2506
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
• http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.6.x/CHANGES
• http://secunia.com/advisories/49782
• http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/trunk/apache2/msc_multipart.c?r1=1918&r2=1917&pathrev=1918
• http://blog.ivanristic.com/2012/06/modsecurity-and-modsecurity-core-rule-set-multipart-bypasses.html
• http://www.openwall.com/lists/oss-security/2012/06/22/2
• http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
• http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/trunk/CHANGES?r1=1920&r2=1919&pathrev=1920
• http://www.openwall.com/lists/oss-security/2012/06/22/1
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:118
• http://secunia.com/advisories/49576
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
• http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html