CVE-2012-1823 on CISA KEV

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 i

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• marc.info — http://marc.info/?l=bugtraq&m=134012830914727&w=2
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.html
• www.securitytracker.com — http://www.securitytracker.com/id?1027022
• h20000.www2.hp.com — http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
• www.mandriva.com — http://www.mandriva.com/security/advisories?name=MDVSA-2012:068
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.html
• rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2012-0546.html
• rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2012-0568.html
• rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2012-0569.html
• www.php.net — http://www.php.net/ChangeLog-5.php#5.4.2
• secunia.com — http://secunia.com/advisories/49014
• rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2012-0570.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.html
• bugs.php.net — https://bugs.php.net/bug.php?id=61910
• www.kb.cert.org — http://www.kb.cert.org/vuls/id/673343
• rhn.redhat.com — http://rhn.redhat.com/errata/RHSA-2012-0547.html
• lists.apple.com — http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
• support.apple.com — http://support.apple.com/kb/HT5501
• eindbazen.net — http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
• secunia.com — http://secunia.com/advisories/49065
• www.kb.cert.org — http://www.kb.cert.org/vuls/id/520827
• bugs.php.net — https://bugs.php.net/patch-display.php?bug_id=61910&patch=cgi.diff&revision=1335…
• h20000.www2.hp.com — http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
• marc.info — http://marc.info/?l=bugtraq&m=134012830914727&w=2
• www.debian.org — http://www.debian.org/security/2012/dsa-2465
• secunia.com — http://secunia.com/advisories/49085
• www.php.net — http://www.php.net/archive/2012.php#id2012-05-03-1
• secunia.com — http://secunia.com/advisories/49087
• www.openwall.com — http://www.openwall.com/lists/oss-security/2024/06/07/1
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

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