Cisco Adaptive Security Appliance VPN Memory Block Exhaustion Vulnerability (cisco-sa-20160517-asa-vpn)

# 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("1.3.6.1.4.1.25623.1.0.106081");
  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 11:12:00 +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:"2016-05-31 17:43:00 +0000 (Tue, 31 May 2016)");

  script_cve_id("CVE-2016-1379");

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

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

  script_name("Cisco Adaptive Security Appliance VPN Memory Block Exhaustion Vulnerability (cisco-sa-20160517-asa-vpn)");

  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 the IPsec code of Cisco Adaptive Security
  Appliance (ASA) Software could allow an authenticated, remote attacker to cause the depletion of
  a memory block, which may cause the system to stop forwarding traffic and result in a denial of
  service (DoS) condition.");

  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 an error in the implementation of
  ICMP error handling for IPsec packets. An attacker could exploit this vulnerability by sending
  crafted packets through an established LAN-to-LAN or Remote Access VPN tunnel.");

  script_tag(name:"impact", value:"A successful exploit could allow the attacker to deplete
  available memory and cause system instability or cause the system to stop forwarding traffic.");

  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-vpn");

  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(
  '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',
  '9.2.1',
  '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',
  '9.3.1',
  '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',
  '9.4.1',
  '9.4.0.115',
  '9.4.1.1',
  '9.4.1.2',
  '9.4.1.3',
  '9.4.1.5',
  '9.5.1' );

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 );