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CVE-2012-1823: PHP-CGI Query String Parameter Vulnerability

criticalknown exploitedpublic exploitCVE-2012-1823
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
sapi/cgi/cgi_main.c in PHP, when configured as a CGI script, does not properly handle query strings, which allows remote attackers to execute arbitrary code.

CSIRTS triage

vendor: PHPproduct: PHPRemote code execution
What
A query string parameter vulnerability allows remote attackers to execute arbitrary code when PHP is configured as a CGI script.
Who is affected
Deployments of PHP configured as a CGI script.
Urgency
Immediate action is necessary due to active exploitation and critical severity.
Action
Upgrade to the latest version of PHP.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2012-1823

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2012-1823coverage & exploitation statusNVD · CVE.org

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