CVE-2012-2751
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 2.6.6-1 |
| debian | bullseye | fixed | 2.6.6-1 |
| debian | forky | fixed | 2.6.6-1 |
| debian | sid | fixed | 2.6.6-1 |
| debian | trixie | fixed | 2.6.6-1 |
| suse | 11.4 | affected | |
| suse | 12.2 | affected | |
| suse | 12.3 | affected | |
| debian | 6.0 | affected | |
| debian | 7.0 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| trustwave | modsecurity | {"endExcluding":"2.6.6"} | 2.6.6 |
| oracle | http_server | 11.1.1.6.0 | |
References
- http://blog.ivanristic.com/2012/06/modsecurity-and-modsecurity-core-rule-set-multipart-bypasses.html
- http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
- http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
- http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
- http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/branches/2.6.x/CHANGES
- http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/trunk/CHANGES?r1=1920&r2=1919&pathrev=1920
- http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/trunk/apache2/msc_multipart.c?r1=1918&r2=1917&pathrev=1918
- http://secunia.com/advisories/49576
- http://secunia.com/advisories/49782
- http://www.debian.org/security/2012/dsa-2506
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:118
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
- http://www.openwall.com/lists/oss-security/2012/06/22/1
- http://www.openwall.com/lists/oss-security/2012/06/22/2
- http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
- http://www.securityfocus.com/bid/54156
- https://security-tracker.debian.org/tracker/CVE-2012-2751
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.