PHP 'open_basedir' Security Bypass Vulnerability

# Copyright (C) 2014 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.804241");
  script_version("2021-04-13T14:13:08+0000");
  script_cve_id("CVE-2012-1171");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2021-04-13 14:13:08 +0000 (Tue, 13 Apr 2021)");
  script_tag(name:"creation_date", value:"2014-02-19 16:40:59 +0530 (Wed, 19 Feb 2014)");
  script_name("PHP 'open_basedir' Security Bypass Vulnerability");

  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 is in libxml RSHUTDOWN function which allows to bypass open_basedir
  protection mechanism through stream_close method call.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote attackers to read arbitrary files.");

  script_tag(name:"affected", value:"PHP versions 5.x.0 to 5.0.5, 5.1.0 to 5.1.6, 5.2.0 to 5.2.17, 5.3.0 to
  5.3.27, 5.4.0 to 5.4.23 and 5.5.0 to 5.5.6.");

  script_tag(name:"solution", value:"No known solution was made available for at least one year
  since the disclosure of this vulnerability. Likely none will be provided anymore.
  General solution options are to upgrade to a newer release, disable respective
  features, remove the product or replace the product by another one.");

  script_xref(name:"URL", value:"https://bugzilla.redhat.com/show_bug.cgi?id=802591");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2014 Greenbone Networks GmbH");
  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");

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

  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(version_in_range(version:phpVer, test_version:"5.0.0", test_version2:"5.0.5") ||
   version_in_range(version:phpVer, test_version:"5.1.0", test_version2:"5.1.6") ||
   version_in_range(version:phpVer, test_version:"5.2.0", test_version2:"5.2.17") ||
   version_in_range(version:phpVer, test_version:"5.3.0", test_version2:"5.3.27") ||
   version_in_range(version:phpVer, test_version:"5.4.0", test_version2:"5.4.23") ||
   version_in_range(version:phpVer, test_version:"5.5.0", test_version2:"5.5.6")) {
  report = report_fixed_ver(installed_version:phpVer, fixed_version:"N/A");
  security_message(data:report, port:phpPort);
  exit(0);
}

exit(99);