ISC BIND DoS Vulnerability (CVE-2012-4244) - Linux

# Copyright (C) 2022 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("1.3.6.1.4.1.25623.1.0.124196");
  script_version("2022-10-21T10:20:04+0000");
  script_tag(name:"last_modification", value:"2022-10-21 10:20:04 +0000 (Fri, 21 Oct 2022)");
  script_tag(name:"creation_date", value:"2022-10-14 10:55:12 +0000 (Fri, 14 Oct 2022)");
  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-2012-4244");

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

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

  script_name("ISC BIND DoS Vulnerability (CVE-2012-4244) - Linux");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2022 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:"If a record with RDATA in excess of 65535 bytes is loaded
  into a nameserver, a subsequent query for that record will cause named to exit with an assertion
  failure.");

  script_tag(name:"impact", value:"This vulnerability can be exploited remotely against recursive
  servers by inducing them to query for records provided by an authoritative server. It affects
  authoritative servers if a zone containing this type of resource record is loaded from file or
  provided via zone transfer.");

  script_tag(name:"affected", value:"ISC BIND versions 9.x prior to 9.7.6-P3, 9.8.x prior to
  9.8.3-P3, 9.9.x prior to 9.9.1-P3 and 9.6-ESV prior to 9.6-ESV-R7-P3.");

  script_tag(name:"solution", value:"Update to version 9.7.7, 9.7.6-P3, 9.6-ESV-R8, 9.6.ESV-R7-P3,
  9.8.4, 9.8.3-P3, 9.9.2, 9.9.1-P3 or later.");

  script_xref(name:"URL", value:"https://kb.isc.org/docs/aa-00778");

  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: "9.6", test_version_up: "9.6r7_p3")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.6-ESV-R7-P3/9.6-ESV-R8");
  security_message(port: port, data: report, proto: proto);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "9.7", test_version_up: "9.7.6p3")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.7.6-P3/9.7.7");
  security_message(port: port, data: report, proto: proto);
  exit(0);
}

if (version_in_range_exclusive(version: version, test_version_lo: "9.8", test_version_up: "9.8.3p3")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.8.3-P3/9.8.4");
  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: "9.9.1p3")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "9.9.1-P3/9.9.2");
  security_message(port: port, data: report, proto: proto);
  exit(0);
}

exit(99);