Cisco Adaptive Security Appliance XML Parser Denial of Service Vulnerability (cisco-sa-20160517-asa-xml)

# Copyright (C) 2016 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:cisco:asa";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.106079");
  script_version("2022-02-10T15:02:13+0000");
  script_tag(name:"last_modification", value:"2022-02-10 15:02:13 +0000 (Thu, 10 Feb 2022)");
  script_tag(name:"creation_date", value:"2016-05-19 09:47:55 +0700 (Thu, 19 May 2016)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-12-01 03:05:00 +0000 (Thu, 01 Dec 2016)");

  script_cve_id("CVE-2016-1385");

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

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

  script_name("Cisco Adaptive Security Appliance XML Parser Denial of Service Vulnerability (cisco-sa-20160517-asa-xml)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2016 Greenbone Networks GmbH");
  script_family("CISCO");
  script_dependencies("gb_cisco_asa_version.nasl", "gb_cisco_asa_version_snmp.nasl");
  script_mandatory_keys("cisco_asa/version");

  script_tag(name:"summary", value:"A vulnerability in XML parser code of Cisco Adaptive Security
  Appliance Software could allow an authenticated, remote attacker to cause system instability or a
  reload of the affected system.");

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

  script_tag(name:"insight", value:"The vulnerability is due to insufficient hardening of the XML
  parser configuration. An attacker could exploit this vulnerability in multiple ways by utilizing
  a malicious file. An attacker with administrative privileges could exploit this by uploading a
  malicious XML file on the system and trigger the XML code to parse the malicious file.
  Additionally, an attacker with Clienteles SSL VPN access could exploit this vulnerability by
  sending a crafted XML file.");

  script_tag(name:"impact", value:"An exploit would allow the attacker to crash the XML parser
  process, which could cause system instability, memory exhaustion, and in some cases lead to a
  reload of the affected system.");

  script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");

  script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160517-asa-xml");

  exit(0);
}

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

if( ! version = get_app_version( cpe:CPE, nofork:TRUE ) )
  exit( 0 );

check_vers = ereg_replace( pattern:"(\(|\))", string:version, replace:"." );
check_vers = ereg_replace( pattern:"\.$", string:check_vers, replace:"" );

affected = make_list(
  '8.4.1',
  '8.4.1.3',
  '8.4.1.11',
  '8.4.2',
  '8.4.2.1',
  '8.4.2.8',
  '8.4.3',
  '8.4.3.8',
  '8.4.3.9',
  '8.4.4',
  '8.4.4.1',
  '8.4.4.3',
  '8.4.4.5',
  '8.4.4.9',
  '8.4.5',
  '8.4.5.6',
  '8.4.6',
  '8.4.7',
  '8.4.7.3',
  '8.4.7.15',
  '8.4.7.22',
  '8.4.7.23',
  '8.4.7.26',
  '8.4.7.28',
  '8.4.0',
  '8.4.7.29',
  '8.5.1',
  '8.5.1.1',
  '8.5.1.6',
  '8.5.1.7',
  '8.5.1.14',
  '8.5.1.17',
  '8.5.1.18',
  '8.5.1.19',
  '8.5.1.24',
  '8.5.1.21',
  '8.6.1',
  '8.6.1.1',
  '8.6.1.2',
  '8.6.1.5',
  '8.6.1.10',
  '8.6.1.12',
  '8.6.1.13',
  '8.6.1.17',
  '8.6.1.14',
  '8.7.1',
  '8.7.1.1',
  '8.7.1.3',
  '8.7.1.4',
  '8.7.1.7',
  '8.7.1.8',
  '8.7.1.11',
  '8.7.1.13',
  '8.7.1.16',
  '8.7.1.17',
  '9.0.1',
  '9.0.2',
  '9.0.2.10',
  '9.0.3',
  '9.0.3.6',
  '9.0.3.8',
  '9.0.4',
  '9.0.4.1',
  '9.0.4.5',
  '9.0.4.7',
  '9.0.4.17',
  '9.0.4.20',
  '9.0.4.24',
  '9.0.4.26',
  '9.0.4.29',
  '9.0.4.33',
  '9.0.4.35',
  '9.0.4.37',
  '9.1.1',
  '9.1.1.4',
  '9.1.2',
  '9.1.2.8',
  '9.1.3',
  '9.1.3.2',
  '9.1.4',
  '9.1.4.5',
  '9.1.5',
  '9.1.5.10',
  '9.1.5.12',
  '9.1.5.15',
  '9.1.5.21',
  '9.1.6',
  '9.1.6.1',
  '9.1.6.4',
  '9.1.6.6',
  '9.1.6.8',
  '9.1.6.10',
  '9.2.1',
  '9.2.2',
  '9.2.2.4',
  '9.2.2.7',
  '9.2.2.8',
  '9.2.3',
  '9.2.3.3',
  '9.2.3.4',
  '9.2.0.0',
  '9.2.0.104',
  '9.2.3.1',
  '9.2.4',
  '9.2.4.2',
  '9.2.4.4',
  '9.3.1',
  '9.3.1.1',
  '9.3.2',
  '9.3.2.2',
  '9.3.3',
  '9.3.3.1',
  '9.3.3.2',
  '9.3.3.5',
  '9.3.1.105',
  '9.3.2.100',
  '9.3.3.6',
  '9.3.2.243',
  '9.3.1.50',
  '9.3.5',
  '9.4.1',
  '9.4.0.115',
  '9.4.1.1',
  '9.4.1.2',
  '9.4.1.3',
  '9.4.1.5',
  '9.4.2',
  '9.4.2.3',
  '9.5.1',
  '9.5.2' );

foreach af ( affected ) {
  if( check_vers == af ) {
    report = report_fixed_ver( installed_version:version, fixed_version:"See advisory" );
    security_message( port:0, data:report );
    exit( 0 );
  }
}

exit( 99 );