PHP < 5.2.15 Security Bypass Vulnerability

# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:php:php";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801731");
  script_version("2025-12-17T05:46:28+0000");
  script_tag(name:"last_modification", value:"2025-12-17 05:46:28 +0000 (Wed, 17 Dec 2025)");
  script_tag(name:"creation_date", value:"2011-02-07 15:21:16 +0100 (Mon, 07 Feb 2011)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");

  script_cve_id("CVE-2011-0752");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("PHP < 5.2.15 Security Bypass Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_php_consolidation.nasl");
  script_mandatory_keys("php/detected");

  script_tag(name:"summary", value:"PHP is prone to a security bypass vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"An error in 'extract()' function does not prevent the use of
  the 'EXTR_OVERWRITE' parameter to overwrite the GLOBALS superglobal array.");

  script_tag(name:"impact", value:"Successful exploitation could allow remote attackers to bypass
  intended access restrictions by modifying data structures that were not intended to depend on
  external input.");

  script_tag(name:"affected", value:"PHP version prior to 5.2.15.");

  script_tag(name:"solution", value:"Update to version 5.2.15 or later.");

  script_xref(name:"URL", value:"http://www.php.net/releases/5_2_15.php");
  script_xref(name:"URL", value:"http://www.openwall.com/lists/oss-security/2010/12/13/4");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if (isnull(port = get_app_port(cpe: CPE)))
  exit(0);

if (!infos = get_app_version_and_location(cpe: CPE, port: port, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
location = infos["location"];

if (version_is_less(version: version, test_version: "5.2.15")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "5.2.15", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);