ISC BIND DoS Vulnerability (CVE-2013-2266) - Linux

# Copyright (C) 2023 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:isc:bind";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.124253");
  script_version("2023-01-24T10:12:05+0000");
  script_tag(name:"last_modification", value:"2023-01-24 10:12:05 +0000 (Tue, 24 Jan 2023)");
  script_tag(name:"creation_date", value:"2023-01-03 10:55:12 +0000 (Tue, 03 Jan 2023)");
  script_tag(name:"cvss_base", value:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");

  script_cve_id("CVE-2013-2266");

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

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

  script_name("ISC BIND DoS Vulnerability (CVE-2013-2266) - Linux");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2023 Greenbone Networks GmbH");
  script_family("Denial of Service");
  script_dependencies("gb_isc_bind_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("isc/bind/detected", "Host/runs_unixoide");

  script_tag(name:"summary", value:"ISC BIND is prone to a denial of service (DoS) vulnerability.");

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

  script_tag(name:"insight", value:"libdns in ISC BIND on UNIX platforms allows remote attackers to
  cause a denial of service (memory consumption) via a crafted regular expression, as demonstrated
  by a memory-exhaustion attack against a machine running a named process.");

  script_tag(name:"affected", value:"ISC BIND versions 9.7.x prior to 9.8.4-P2, 9.8.5 prior to
  9.8.5b2, 9.9.x prior to 9.9.2-P2, and 9.9.3 prior to 9.9.3b2");

  script_tag(name:"solution", value:"Update to version 9.8.4-P2, 9.8.5b2, 9.9.2-P2, 9.9.3b2 or later.");

  script_xref(name:"URL", value:"https://kb.isc.org/docs/aa-00871");
  script_xref(name:"URL", value:"https://kb.isc.org/docs/aa-00879");

  exit(0);
}

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

if (isnull(port = get_app_port(cpe: CPE)))
  exit(0);

if (!infos = get_app_full(cpe: CPE, port: port, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
proto = infos["proto"];
location = infos["location"];

if (version_in_range_exclusive(version: version, test_version_lo: "9.7", test_version_up: "9.8.4p2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.8.4-P2");
  security_message(port: port, data: report, proto: proto);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "9.8.5", test_version_up: "9.8.5b2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.8.5b2");
  security_message(port: port, data: report, proto: proto);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "9.9", test_version_up: "9.9.2p2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.9.2-P2");
  security_message(port: port, data: report, proto: proto);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "9.9.3", test_version_up: "9.9.3b2")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.9.3b2");
  security_message(port: port, data: report, proto: proto);
  exit(0);
}

exit(99);