Description

ModSecurity before 2.5.11 treats request parameter values containing single quotes as files, which allows remote attackers to bypass filtering rules and perform other attacks such as cross-site scripting (XSS) attacks via a single quote in a request parameter in the Content-Disposition field of a request with a multipart/form-data Content-Type header.

Weaknesses 1

Affected Products 4

References 11

• blog.ivanristic.com http://blog.ivanristic.com/2012/06/modsecurity-and-modsecurity-core-rule-set-multipart-bypasses.html
  Third Party Advisory
• lists.opensuse.org http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
  Mailing ListThird Party Advisory
• lists.opensuse.org http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
  Mailing ListThird Party Advisory
• lists.opensuse.org http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
  Mailing ListThird Party Advisory
• mod-security.svn.sourceforge.net http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.6.x/CHANGES
  Broken Link
• secunia.com http://secunia.com/advisories/49576
  Third Party Advisory
• openwall.com http://www.openwall.com/lists/oss-security/2012/06/22/1
  Mailing ListThird Party Advisory
• openwall.com http://www.openwall.com/lists/oss-security/2012/06/22/2
  Mailing ListThird Party Advisory
• securityfocus.com http://www.securityfocus.com/bid/54156
  Third Party AdvisoryVDB Entry
• suspekt.org http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf
  Third Party Advisory
• modsecurity.org https://www.modsecurity.org/fisheye/browse/modsecurity/m2/branches/2.5.x/apache2/msc_multipart.c?r2=1419&r1=1366
  Broken Link

Remediation