CVE-2012-1823
CRITICAL severity · CVSS 9.8 · Command injection · actively exploited (CISA KEV)
9.8CVSS CRITICAL ● exploited
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2022-03-25. US federal agencies must patch by 2022-04-15.
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)94%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (3)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00002.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00007.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00011.htmlAdvisory
- http://marc.info/?l=bugtraq&m=134012830914727&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0546.htmlAdvisory
- http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/Exploit