PHP 5.3.x < 5.3.13 CGI Query String Code Execution

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(59056);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2012-2311", "CVE-2012-2335", "CVE-2012-2336");
  script_bugtraq_id(53388);
  script_xref(name:"CERT", value:"520827");

  script_name(english:"PHP 5.3.x < 5.3.13 CGI Query String Code Execution");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server uses a version of PHP that is affected by a
remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its banner, the version of PHP installed on the remote
host is 5.3.x earlier than 5.3.13 and, as such, is potentially 
affected by a remote code execution and information disclosure 
vulnerability.

The fix for CVE-2012-1823 does not completely correct the CGI query
vulnerability. Disclosure of PHP source code and code execution via
query parameters are still possible.

Note that this vulnerability is exploitable only when PHP is used in
CGI-based configurations.  Apache with 'mod_php' is not an exploitable
configuration.");
  script_set_attribute(attribute:"see_also", value:"http://eindbazen.net/2012/05/php-cgi-advisory-cve-2012-1823/");
  script_set_attribute(attribute:"see_also", value:"https://bugs.php.net/bug.php?id=61910");
  script_set_attribute(attribute:"see_also", value:"http://www.php.net/archive/2012.php#id2012-05-08-1");
  script_set_attribute(attribute:"see_also", value:"http://www.php.net/ChangeLog-5.php#5.3.13");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PHP version 5.3.13 or later.  A 'mod_rewrite'
workaround is available as well.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-2335");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"metasploit_name", value:'PHP CGI Argument Injection');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/05/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/05/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/05/09");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:php:php");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2012-2022 Tenable Network Security, Inc.");

  script_dependencies("php_version.nasl");
  script_require_keys("www/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

include("global_settings.inc");
include("audit.inc");
include("misc_func.inc");
include("http.inc");
include("webapp_func.inc");

port = get_http_port(default:80, php:TRUE);

php = get_php_from_kb(
  port : port,
  exit_on_fail : TRUE
);

version = php["ver"];
source = php["src"];

backported = get_kb_item('www/php/'+port+'/'+version+'/backported');

if (report_paranoia < 2 && backported)
  audit(AUDIT_BACKPORT_SERVICE, port, "PHP "+version+" install");

if (version =~ "^5\.3\.([0-9]|1[0-2])($|[^0-9])")
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Version source     : '+source +
      '\n  Installed version  : '+version+
      '\n  Fixed version      : 5.3.13\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "PHP", port, version);