Home/CVE/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
CVE

CVE-2012-2311

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

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.

HIGH · CVSS 7.5 EPSS 0.74532
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
▤

Affected Products & Versions

2
php<= 5.3.12
phpall versions
⚠

Public Exploits & PoCs

4
remoteApache + PHP < 5.3.12 / < 5.4.2 - Remote Code Execution + Scanner2013-10-31
remoteApache + PHP < 5.3.12 / < 5.4.2 - cgi-bin Remote Code Executionverified
remotePHP < 5.3.12 / < 5.4.2 - CGI Argument Injectionverified
remotePHP 5.3.12/5.4.2 - CGI Argument Injection (Metasploit)verified
◈

Detection Rules (IDS/IPS)

2
et-openET EXPLOIT PHP-CGI Query String Parameter Vuln Inbound (CVE-2012-2311)attempted-user
snort-communitySERVER-WEBAPP PHP-CGI remote file include attemptattempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · secalert@redhat.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD11 May 2012 · 10:15 AM
⚑

Vendor Advisories

8
suse-csafopenSUSE-SU-2024:10290-1
suse-csafopenSUSE-SU-2024:10344-1
rhsaRHSA-2012:0570Critical
usnUSN-1437-1
rhsaRHSA-2012:0569Critical
🔗

References & Sources

17
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
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://marc.info/?l=bugtraq&m=134012830914727&w=2
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