PHP Security Bypass Vulnerability (May 2018) - Linux

# 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("1.3.6.1.4.1.25623.1.0.813162");
  script_version("2024-02-09T05:06:25+0000");
  script_cve_id("CVE-2018-10545");
  script_tag(name:"cvss_base", value:"1.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2024-02-09 05:06:25 +0000 (Fri, 09 Feb 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-08-19 11:15:00 +0000 (Mon, 19 Aug 2019)");
  script_tag(name:"creation_date", value:"2018-05-03 10:25:53 +0530 (Thu, 03 May 2018)");
  script_name("PHP Security Bypass Vulnerability (May 2018) - Linux");

  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:"The flaw exists as the dumpable FPM child
  processes allow bypassing opcache access controls");

  script_tag(name:"impact", value:"Successful exploitation will allow an attacker
  to bypass security restrictions and access sensitive configuration data for
  other accounts directly in the PHP worker process's memory.");

  script_tag(name:"affected", value:"PHP versions prior to 5.6.35,

  PHP versions 7.2.x prior to 7.2.4,

  PHP versions 7.0.x prior to 7.0.29,

  PHP versions 7.1.x prior to 7.1.16 on Linux.");

  script_tag(name:"solution", value:"Update to version 7.2.4 or 7.0.29 or
  5.6.35 or 7.1.16 or later. Please see the references for more information.");

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

  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_xref(name:"URL", value:"http://www.php.net/ChangeLog-5.php#5.6.35");
  script_xref(name:"URL", value:"http://www.php.net/ChangeLog-7.php#7.0.29");
  script_xref(name:"URL", value:"http://www.php.net/ChangeLog-7.php#7.1.16");
  script_xref(name:"URL", value:"http://www.php.net/ChangeLog-7.php#7.2.4");

  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("gb_php_ssh_login_detect.nasl", "gb_php_http_detect.nasl", "os_detection.nasl");
  script_mandatory_keys("php/detected", "Host/runs_unixoide");
  exit(0);
}

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

if(isnull(phport = get_app_port(cpe: CPE))){
  exit(0);
}

if(!infos = get_app_version_and_location(cpe:CPE, port:phport, exit_no_version:TRUE)) exit(0);
vers = infos['version'];
path = infos['location'];

if(version_in_range(version: vers, test_version: "7.2", test_version2: "7.2.3")){
  fix = "7.2.4";
}
else if(version_in_range(version: vers, test_version: "7.0", test_version2: "7.0.28")){
  fix = "7.0.29";
}
else if(version_in_range(version: vers, test_version: "7.1", test_version2: "7.1.15")){
  fix = "7.1.16";
}
else if(version_is_less(version: vers, test_version: "5.6.35")){
  fix = "5.6.35";
}

if(fix){
  report = report_fixed_ver(installed_version:vers, fixed_version:fix, install_path:path);
  security_message(port:phport, data:report);
  exit(0);
}
exit(0);