Cisco ASA Clientless SSL VPN CIFS Heap Overflow Vulnerability (cisco-sa-20170208-asa)

# Copyright (C) 2017 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("1.3.6.1.4.1.25623.1.0.106583");
  script_version("2022-02-24T08:32:00+0000");
  script_tag(name:"last_modification", value:"2022-02-24 08:32:00 +0000 (Thu, 24 Feb 2022)");
  script_tag(name:"creation_date", value:"2017-02-09 13:48:30 +0700 (Thu, 09 Feb 2017)");
  script_tag(name:"cvss_base", value:"8.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:P/I:P/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-10-30 16:27:00 +0000 (Tue, 30 Oct 2018)");

  script_cve_id("CVE-2017-3807");

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

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

  script_name("Cisco ASA Clientless SSL VPN CIFS Heap Overflow Vulnerability (cisco-sa-20170208-asa)");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2017 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 Common Internet Filesystem (CIFS) code in
  the Clientless SSL VPN functionality of Cisco ASA Software could allow an authenticated, remote
  attacker to cause a heap overflow.");

  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 validation of user
  supplied input. An attacker could exploit this vulnerability by sending a crafted URL to the
  affected system.

  Only traffic directed to the affected system can be used to exploit this vulnerability. This
  vulnerability affects systems configured in routed firewall mode only and in single or multiple
  context mode. This vulnerability can be triggered by IPv4 or IPv6 traffic. A valid TCP connection
  is needed to perform the attack. The attacker needs to have valid credentials to log in to the
  Clientless SSL VPN portal.");

  script_tag(name:"impact", value:"An exploit could allow the remote attacker to cause a reload of
  the affected system or potentially execute code.");

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

  script_xref(name:"URL", value:"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170208-asa");

  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(
  "7.0.1",
  "7.0.1.4",
  "7.0.2",
  "7.0.3",
  "7.0.4",
  "7.0.4.2",
  "7.0.5",
  "7.0.5.12",
  "7.0.6",
  "7.0.6.18",
  "7.0.6.22",
  "7.0.6.26",
  "7.0.6.29",
  "7.0.6.32",
  "7.0.6.4",
  "7.0.6.8",
  "7.0.7",
  "7.0.7.1",
  "7.0.7.12",
  "7.0.7.4",
  "7.0.7.9",
  "7.0.8",
  "7.0.8.12",
  "7.0.8.13",
  "7.0.8.2",
  "7.0.8.8",
  "7.1.2",
  "7.1.2.16",
  "7.1.2.20",
  "7.1.2.24",
  "7.1.2.28",
  "7.1.2.38",
  "7.1.2.42",
  "7.1.2.46",
  "7.1.2.49",
  "7.1.2.53",
  "7.1.2.61",
  "7.1.2.64",
  "7.1.2.72",
  "7.1.2.81",
  "7.2.1",
  "7.2.1.13",
  "7.2.1.19",
  "7.2.1.24",
  "7.2.1.9",
  "7.2.2",
  "7.2.2.10",
  "7.2.2.14",
  "7.2.2.18",
  "7.2.2.19",
  "7.2.2.22",
  "7.2.2.34",
  "7.2.2.6",
  "7.2.3",
  "7.2.3.1",
  "7.2.3.12",
  "7.2.3.16",
  "7.2.4",
  "7.2.4.18",
  "7.2.4.25",
  "7.2.4.27",
  "7.2.4.30",
  "7.2.4.33",
  "7.2.4.6",
  "7.2.4.9",
  "7.2.5",
  "7.2.5.10",
  "7.2.5.12",
  "7.2.5.16",
  "7.2.5.2",
  "7.2.5.4",
  "7.2.5.7",
  "7.2.5.8",
  "8.0.1.2",
  "8.0.2",
  "8.0.2.11",
  "8.0.2.15",
  "8.0.3",
  "8.0.3.12",
  "8.0.3.19",
  "8.0.3.6",
  "8.0.4",
  "8.0.4.16",
  "8.0.4.23",
  "8.0.4.25",
  "8.0.4.28",
  "8.0.4.3",
  "8.0.4.31",
  "8.0.4.32",
  "8.0.4.33",
  "8.0.4.9",
  "8.0.5",
  "8.0.5.20",
  "8.0.5.23",
  "8.0.5.25",
  "8.0.5.27",
  "8.0.5.28",
  "8.0.5.31",
  "8.1.0.104",
  "8.1.1",
  "8.1.1.6",
  "8.1.2",
  "8.1.2.13",
  "8.1.2.15",
  "8.1.2.16",
  "8.1.2.19",
  "8.1.2.23",
  "8.1.2.24",
  "8.1.2.49",
  "8.1.2.50",
  "8.1.2.55",
  "8.1.2.56",
  "8.2.0.45",
  "8.2.1",
  "8.2.1.11",
  "8.2.2",
  "8.2.2.10",
  "8.2.2.12",
  "8.2.2.16",
  "8.2.2.17",
  "8.2.2.9",
  "8.2.3",
  "8.2.4",
  "8.2.4.1",
  "8.2.4.4",
  "8.2.5",
  "8.2.5.13",
  "8.2.5.22",
  "8.2.5.26",
  "8.2.5.33",
  "8.2.5.40",
  "8.2.5.41",
  "8.2.5.46",
  "8.2.5.48",
  "8.2.5.50",
  "8.2.5.52",
  "8.2.5.55",
  "8.2.5.57",
  "8.2.5.59",
  "8.3.1",
  "8.3.1.1",
  "8.3.1.4",
  "8.3.1.6",
  "8.3.2",
  "8.3.2.13",
  "8.3.2.23",
  "8.3.2.25",
  "8.3.2.31",
  "8.3.2.33",
  "8.3.2.34",
  "8.3.2.37",
  "8.3.2.39",
  "8.3.2.4",
  "8.3.2.40",
  "8.3.2.41",
  "8.3.2.44",
  "8.4.0",
  "8.4.1",
  "8.4.1.11",
  "8.4.1.3",
  "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",
  "8.4.7.15",
  "8.4.7.22",
  "8.4.7.23",
  "8.4.7.26",
  "8.4.7.28",
  "8.4.7.29",
  "8.4.7.3",
  "8.5.1",
  "8.5.1.1",
  "8.5.1.14",
  "8.5.1.17",
  "8.5.1.18",
  "8.5.1.19",
  "8.5.1.21",
  "8.5.1.24",
  "8.5.1.6",
  "8.5.1.7",
  "8.6.1",
  "8.6.1.1",
  "8.6.1.10",
  "8.6.1.12",
  "8.6.1.13",
  "8.6.1.14",
  "8.6.1.17",
  "8.6.1.2",
  "8.6.1.5",
  "8.7.1",
  "8.7.1.1",
  "8.7.1.11",
  "8.7.1.13",
  "8.7.1.16",
  "8.7.1.17",
  "8.7.1.3",
  "8.7.1.4",
  "8.7.1.7",
  "8.7.1.8",
  "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",
  "9.0.4.17",
  "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",
  "9.0.4.40",
  "9.0.4.42",
  "9.0.4.5",
  "9.0.4.7",
  "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",
  "9.1.6.10",
  "9.1.6.4",
  "9.1.6.6",
  "9.1.6.8",
  "9.1.7.11",
  "9.1.7.12",
  "9.1.7.4",
  "9.1.7.6",
  "9.1.7.7",
  "9.1.7.9",
  "9.2.0.0",
  "9.2.0.104",
  "9.2.3.1",
  "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",
  "9.2.4",
  "9.2.4.10",
  "9.2.4.13",
  "9.2.4.14",
  "9.2.4.16",
  "9.2.4.17",
  "9.2.4.18",
  "9.2.4.19",
  "9.2.4.2",
  "9.2.4.4",
  "9.2.4.8",
  "9.3.1.105",
  "9.3.1.50",
  "9.3.2.100",
  "9.3.2.243",
  "9.3.1",
  "9.3.1.1",
  "9.3.2",
  "9.3.2.2",
  "9.3.3",
  "9.3.3.1",
  "9.3.3.10",
  "9.3.3.11",
  "9.3.3.2",
  "9.3.3.5",
  "9.3.3.6",
  "9.3.3.9",
  "9.3.5",
  "9.4.0.115",
  "9.4.1",
  "9.4.1.1",
  "9.4.1.2",
  "9.4.1.3",
  "9.4.1.5",
  "9.4.2",
  "9.4.2.3",
  "9.4.3",
  "9.4.3.3",
  "9.4.3.4",
  "9.5.1",
  "9.5.2",
  "9.5.2.10",
  "9.5.2.14",
  "9.5.2.6",
  "9.5.3",
  "9.5.3.1",
  "9.5.3.2",
  "9.5.3.3",
  "9.5.3.6",
  "9.5.3.7",
  "9.6.1.10",
  "9.6.1.5",
  "9.6.2",
  "9.6.2.1",
  "9.6.2.2",
  "9.6.2.3",
  "9.6.2.7");

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);