FreeBSD : bind -- Multiple Denial of Service vulnerabilities (3cb6f059-c69d-11db-9f82-000e0c2e438a)

2007-02-28T00:00:00
ID FREEBSD_PKG_3CB6F059C69D11DB9F82000E0C2E438A.NASL
Type nessus
Reporter Tenable
Modified 2018-11-10T00:00:00

Description

A type * (ANY) query response containing multiple RRsets can trigger an assertion failure.

Certain recursive queries can cause the nameserver to crash by using memory which has already been freed. Impact : A remote attacker sending a type * (ANY) query to an authoritative DNS server for a DNSSEC signed zone can cause the named(8) daemon to exit, resulting in a Denial of Service.

A remote attacker sending recursive queries can cause the nameserver to crash, resulting in a Denial of Service. Workaround : There is no workaround available, but systems which are not authoritative servers for DNSSEC signed zones are not affected by the first issue; and systems which do not permit untrusted users to perform recursive DNS resolution are not affected by the second issue. Note that the default configuration for named(8) in FreeBSD allows local access only (which on many systems is equivalent to refusing access to untrusted users).

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(24730);
  script_version("1.14");
  script_cvs_date("Date: 2018/11/10 11:49:41");

  script_cve_id("CVE-2007-0493", "CVE-2007-0494");
  script_bugtraq_id(22229, 22231);
  script_xref(name:"FreeBSD", value:"SA-07:02.bind");

  script_name(english:"FreeBSD : bind -- Multiple Denial of Service vulnerabilities (3cb6f059-c69d-11db-9f82-000e0c2e438a)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A type * (ANY) query response containing multiple RRsets can trigger
an assertion failure.

Certain recursive queries can cause the nameserver to crash by using
memory which has already been freed. Impact : A remote attacker
sending a type * (ANY) query to an authoritative DNS server for a
DNSSEC signed zone can cause the named(8) daemon to exit, resulting in
a Denial of Service.

A remote attacker sending recursive queries can cause the nameserver
to crash, resulting in a Denial of Service. Workaround : There is no
workaround available, but systems which are not authoritative servers
for DNSSEC signed zones are not affected by the first issue; and
systems which do not permit untrusted users to perform recursive DNS
resolution are not affected by the second issue. Note that the default
configuration for named(8) in FreeBSD allows local access only (which
on many systems is equivalent to refusing access to untrusted users)."
  );
  # https://vuxml.freebsd.org/freebsd/3cb6f059-c69d-11db-9f82-000e0c2e438a.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?fde5c4d4"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:named");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/02/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/02/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/02/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"named<9.3.4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");