CVE-2012-4528 json
The mod_security2 module before 2.7.0 for the Apache HTTP Server allows remote attackers to bypass rules, and deliver arbitrary POST data t…
published 2012-12-28 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4456
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 12.4%
- EPSS 12.4% chance of exploitation in 30 days, percentile 96%
- public exploits
- 1
- Exploit-DB
Summary
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.
Patch / fix
- trustwave modsecurity 2.7.0
- modsecurity-apache Debian 14, Debian 13, Debian 12 2.6.6-5
debian advisories DEBIAN-CVE-2012-4528
- apache2-mod_security2 openSUSE Tumbleweed 2.9.0-5.6
opensuse advisories openSUSE-SU-2024:10034-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2012-4528 updated cvss 4.3
mod_security: multipart/invalid part ruleset bypass
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Timeline
- First public exploit (EDB-37949)
- Published
Exploit prediction
12.36% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-37949 ModSecurity - 'POST' Security Bypass remote, 2012-10-17
- seclists.org http://seclists.org/fulldisclosure/2012/Oct/113 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
References
-
seclists.org
/fulldisclosure/2012/Oct/113
mailing-list, exploit, third-party-advisory
-
lists.opensuse.org
/opensuse-updates/2013-08/msg00031.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.opensuse.org
/opensuse-updates/2013-08/msg00020.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.fedoraproject.org
/pipermail/package-announce/2012-November/093011.html
vendor-advisory, third-party-advisory
-
lists.opensuse.org
/opensuse-updates/2013-08/msg00025.html
vendor-advisory, mailing-list, third-party-advisory
-
sec-consult.com
/fxdata/seccons/prod/temedia/advisories_txt/20121017-0_mod_security_ruleset_bypass.txt
third-party-advisory
-
mod-security.svn.sourceforge.net
/viewvc/mod-security?view=revision&sortby=date&revision=2081
broken-link
-
mod-security.svn.sourceforge.net
/viewvc/mod-security/m2/branches/2.7.x/CHANGES
broken-link
-
mod-security.svn.sourceforge.net
/viewvc/mod-security/m2/trunk/apache2/msc_multipart.c?sortby=date&r1=2081&r2=2080&pathrev=2081
broken-link
-
openwall.com
/lists/oss-security/2012/10/18/14
mailing-list, third-party-advisory
Sources
- CVE List CVE-2012-4528
- NVD CVE-2012-4528
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.