PHP 7.2.x <= 7.2.7 DoS Vulnerability

# SPDX-FileCopyrightText: 2018 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("1.3.6.1.4.1.25623.1.0.813625");
  script_version("2025-09-24T05:39:03+0000");
  script_tag(name:"last_modification", value:"2025-09-24 05:39:03 +0000 (Wed, 24 Sep 2025)");
  script_tag(name:"creation_date", value:"2018-06-28 14:52:09 +0530 (Thu, 28 Jun 2018)");
  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:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-03-12 11:46:00 +0000 (Tue, 12 Mar 2019)");

  script_cve_id("CVE-2018-12882");

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

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

  script_name("PHP 7.2.x <= 7.2.7 DoS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_php_consolidation.nasl");
  script_mandatory_keys("php/detected");

  script_tag(name:"summary", value:"PHP is prone to a denial of service (DoS) vulnerability.");

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

  script_tag(name:"insight", value:"An error exists in the 'exif_read_from_impl' function of the
  'ext/exif/exif.c' script.");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker to cause a DoS
  condition, denying service to legitimate users.");

  script_tag(name:"affected", value:"PHP versions 7.2.0 through 7.2.7.");

  script_tag(name:"solution", value:"The vendor has released updates. Please see the references
  for more information.");

  script_xref(name:"URL", value:"https://bugs.php.net/bug.php?id=76409");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/104551");
  script_xref(name:"URL", value:"https://bugs.php.net/patch-display.php?bug=76409&patch=avoid-double-free.patch&revision=1528027735");

  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_in_range(version: version, test_version: "7.2.0", test_version2: "7.2.7")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "See references", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);