CVE-2012-2311

critical

Description

sapi/cgi/cgi_main.c in PHP before 5.3.13 and 5.4.x before 5.4.3, when configured as a CGI script (aka php-cgi), does not properly handle query strings that contain a %3D sequence but no = (equals sign) character, which allows remote attackers to execute arbitrary code by placing command-line options in the query string, related to lack of skipping a certain php_getopt for the 'd' case. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-1823.

References

https://github.com/Alam686/openvas-vulnerability-assessment

https://github.com/charis3306/CVE-2024-4577

https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03839862

https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff-fix-check.patch&revision=1336093719&display=1

https://bugs.php.net/bug.php?id=61910

http://www.securitytracker.com/id?1027022

http://www.php.net/archive/2012.php#id2012-05-08-1

http://www.php.net/ChangeLog-5.php#5.4.3

http://www.kb.cert.org/vuls/id/520827

http://www.debian.org/security/2012/dsa-2465

http://support.apple.com/kb/HT5501

http://secunia.com/advisories/49085

http://secunia.com/advisories/49014

http://marc.info/?l=bugtraq&m=134012830914727&w=2

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html

http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html

http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/

Details

Source: Mitre, NVD

Published: 2012-05-11

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.69559