PHP 'phar_fix_filepath' Function Stack Buffer Overflow Vulnerability - Mar16 (Linux)

2016-03-01T00:00:00
ID OPENVAS:1361412562310807507
Type openvas
Reporter Copyright (C) 2016 Greenbone Networks GmbH
Modified 2017-10-24T00:00:00

Description

This host is installed with PHP and is prone to stack buffer overflow vulnerability.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_php_stack_buff_overflow_vuln_mar16_lin.nasl 2016-03-01 16:56:54Z March$
#
# PHP 'phar_fix_filepath' Function Stack Buffer Overflow Vulnerability - Mar16 (Linux)
#
# Authors:
# Rinu Kuriakose <krinu@secpod.com>
#
# Copyright:
# Copyright (C) 2016 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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("1.3.6.1.4.1.25623.1.0.807507");
  script_version("$Revision: 7545 $");
  script_cve_id("CVE-2015-5590", "CVE-2015-8838", "CVE-2015-5589");
  script_bugtraq_id(75970, 88763, 75974);
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"$Date: 2017-10-24 13:45:30 +0200 (Tue, 24 Oct 2017) $");
  script_tag(name:"creation_date", value:"2016-03-01 16:56:54 +0530 (Tue, 01 Mar 2016)");
  script_name("PHP 'phar_fix_filepath' Function Stack Buffer Overflow Vulnerability - Mar16 (Linux)");

  script_tag(name:"summary", value:"This host is installed with PHP and is prone
  to stack buffer overflow vulnerability.");

  script_tag(name:"vuldetect", value:"Get the installed version with the help
  of detect NVT and check the version is vulnerable or not.");

  script_tag(name:"insight", value:"Multiple flaws are due to
  - Inadequate boundary checks on user-supplied input by 'phar_fix_filepath'
    function in 'ext/phar/phar.c' script.
  - Improper validation of file pointer in the 'phar_convert_to_other'
    function in 'ext/phar/phar_object.c' script.");

  script_tag(name:"impact", value:"Successfully exploiting this issue allow
  remote attackers to execute arbitrary code in the context of the PHP process. 
  Failed exploit attempts will likely crash the webserver.

  Impact Level: Application");

  script_tag(name:"affected", value:"PHP versions before 5.4.43, 5.5.x before 
  5.5.27, and 5.6.x before 5.6.11 on Linux");

  script_tag(name:"solution", value:"Upgrade to PHP version 5.4.43, or 5.5.27, or 
  5.6.11 or later.
  For updates refer to http://www.php.net");

  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");
  script_xref(name:"URL", value:"https://bugs.php.net/bug.php?id=69923");

  script_copyright("Copyright (C) 2016 Greenbone Networks GmbH");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("gb_php_detect.nasl", "os_detection.nasl");
  script_mandatory_keys("php/installed","Host/runs_unixoide");
  script_require_ports("Services/www", 80);
  exit(0);
}


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

## Variable Initialization
phpPort = "";
phpVer = "";

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

## Check for version before 5.4.43
if(version_is_less(version:phpVer, test_version:"5.4.43"))
{
  fix = '5.4.43';
  VULN = TRUE;
}

## Check for version 5.6.x before 5.6.11
else if(phpVer =~ "^(5\.6)")
{
  if(version_is_less(version:phpVer, test_version:"5.6.11"))
  {
    fix = '5.6.11';
    VULN = TRUE;
  }
}

## Check for version 5.5.x before 5.5.27
else if(phpVer =~ "^(5\.5)")
{
  if(version_is_less(version:phpVer, test_version:"5.5.27"))
  {
    fix = '5.5.27';
    VULN = TRUE;
  }
}

if(VULN)
{
  report = report_fixed_ver(installed_version:phpVer, fixed_version:fix);
  security_message(data:report, port:phpPort);
  exit(0);
}

exit(99);