CVE-2012-4528
Description
The mod_security2 module before 2.7.0 for the Apache HTTP Server allows remote attackers to bypass rules, and deliver arbitrary POST data to a PHP application, via a multipart request in which an invalid part precedes the crafted data.
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.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 2.6.6-5 |
| debian | bullseye | fixed | 2.6.6-5 |
| debian | forky | fixed | 2.6.6-5 |
| debian | sid | fixed | 2.6.6-5 |
| debian | trixie | fixed | 2.6.6-5 |
| suse | 11.4 | affected | |
| suse | 12.2 | affected | |
| suse | 12.3 | affected | |
| fedora | 18 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| trustwave | modsecurity | {"endExcluding":"2.7.0"} | 2.7.0 |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093011.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/2.7.x/CHANGES
- http://mod-security.svn.sourceforge.net/viewvc/mod-security/m2/trunk/apache2/msc_multipart.c?sortby=date&r1=2081&r2=2080&pathrev=2081
- http://mod-security.svn.sourceforge.net/viewvc/mod-security?view=revision&sortby=date&revision=2081
- http://seclists.org/fulldisclosure/2012/Oct/113
- http://www.openwall.com/lists/oss-security/2012/10/18/14
- https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt/20121017-0_mod_security_ruleset_bypass.txt
- https://security-tracker.debian.org/tracker/CVE-2012-4528
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.