Improper Input Validation The advisory has been revoked - it doesn't affect any version of package php-fpm (opens in a new tab)
Threat Intelligence
Snyk has reported that there have been attempts or successful attacks targeting this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS6-PHPFPM-13834429
- published5 Nov 2025
- disclosed3 May 2012
Introduced: 3 May 2012
CVE-2012-1823 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:6.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php-fpm package and not the php-fpm package as distributed by Centos.
sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI script (aka php-cgi), does not properly handle query strings that lack an = (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.
References
- http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
- http://www.kb.cert.org/vuls/id/520827
- http://www.kb.cert.org/vuls/id/673343
- https://bugs.php.net/bug.php?id=61910
- https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff&revision=1335984315&display=1
- http://support.apple.com/kb/HT5501
- http://www.php.net/archive/2012.php#id2012-05-03-1
- http://www.php.net/ChangeLog-5.php#5.4.2
- https://access.redhat.com/security/cve/CVE-2012-1823
- http://www.debian.org/security/2012/dsa-2465
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://marc.info/?l=bugtraq&m=134012830914727&w=2
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:068
- http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
- http://rhn.redhat.com/errata/RHSA-2012-0546.html
- http://rhn.redhat.com/errata/RHSA-2012-0547.html
- http://rhn.redhat.com/errata/RHSA-2012-0568.html
- http://rhn.redhat.com/errata/RHSA-2012-0569.html
- http://rhn.redhat.com/errata/RHSA-2012-0570.html
- https://access.redhat.com/errata/RHSA-2012:0546
- https://access.redhat.com/errata/RHSA-2012:0568
- http://www.securitytracker.com/id?1027022
- http://secunia.com/advisories/49014
- http://secunia.com/advisories/49065
- http://secunia.com/advisories/49085
- http://secunia.com/advisories/49087
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html
- http://www.openwall.com/lists/oss-security/2024/06/07/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W45DBOH56NQDRTOM2DN2LNA2FZIMC3PK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKGTQUOA2NTZ3RXN22CSAUJPIRUYRB4B/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-1823
- https://www.exploit-db.com/exploits/29290
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2012/CVE-2012-1823.yaml
- https://github.com/0xl0k1/CVE-2012-1823