PHP Use-After-Free Remote Code EXecution Vulnerability (Jan 2015)

# SPDX-FileCopyrightText: 2015 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("1.3.6.1.4.1.25623.1.0.805411");
  script_version("2024-02-19T05:05:57+0000");
  script_cve_id("CVE-2014-8142");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2024-02-19 05:05:57 +0000 (Mon, 19 Feb 2024)");
  script_tag(name:"creation_date", value:"2015-01-07 10:42:19 +0530 (Wed, 07 Jan 2015)");
  script_name("PHP Use-After-Free Remote Code EXecution Vulnerability (Jan 2015)");

  script_tag(name:"summary", value:"PHP is prone to a use-after-free vulnerability.");

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

  script_tag(name:"insight", value:"The flaw is due to Use-after-free
  vulnerability in the process_nested_data function in ext/standard/var
  _unserializer.re in PHP.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to execute arbitrary code via a crafted unserialize call.");

  script_tag(name:"affected", value:"PHP versions 5.4.x before 5.4.36,
  5.5.x before 5.5.20 and 5.6.x before 5.6.4");

  script_tag(name:"solution", value:"Update to PHP version 5.4.36
  or 5.5.20 or 5.6.4 or later.");

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

  script_xref(name:"URL", value:"http://php.net/ChangeLog-5.php");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/71791");
  script_xref(name:"URL", value:"http://secunia.com/advisories/60920");
  script_xref(name:"URL", value:"https://bugs.php.net/bug.php?id=68594");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2015 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("secpod_php_smb_login_detect.nasl", "gb_php_ssh_login_detect.nasl", "gb_php_http_detect.nasl");
  script_mandatory_keys("php/detected");
  exit(0);
}

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

if( isnull( phpPort = get_app_port( cpe:CPE ) ) ) exit( 0 );
if( ! phpVer = get_app_version( cpe:CPE, port:phpPort ) ) exit( 0 );

if(phpVer =~ "^5\.[4-6]"){
  if(version_in_range(version:phpVer, test_version:"5.4.0", test_version2:"5.4.35")||
     version_in_range(version:phpVer, test_version:"5.5.0", test_version2:"5.5.19")||
     version_in_range(version:phpVer, test_version:"5.6.0", test_version2:"5.6.3")){
    report = report_fixed_ver(installed_version:phpVer, fixed_version:"5.4.36/5.5.20/5.6.4");
    security_message(data:report, port:phpPort);
    exit(0);
  }
}

exit(99);