ISC BIND 9.9.7.x < 9.9.7rc2 Multiple Vulnerabilities

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(81490);
  script_version("1.9");
  script_cvs_date("Date: 2018/11/15 20:50:21");

  script_cve_id("CVE-2014-8500", "CVE-2015-1349");
  script_bugtraq_id(71590, 72673);

  script_name(english:"ISC BIND 9.9.7.x < 9.9.7rc2 Multiple Vulnerabilities");
  script_summary(english:"Checks the version of BIND.");

  script_set_attribute(attribute:"synopsis", value:"The remote name server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the remote installation
of BIND is potentially affected by multiple vulnerabilities :

  - A flaw exists within the Domain Name Service due to an
    error in the code used to follow delegations. A remote
    attacker, with a maliciously-constructed zone or query,
    can cause the service to issue unlimited queries,
    resulting in resource exhaustion. (CVE-2014-8500)

  - A denial of service vulnerability exists due to an error
    relating to DNSSEC validation and the managed-keys
    feature. A remote attacker can trigger an incorrect
    trust-anchor management scenario in which no key is
    ready for use, resulting in an assertion failure and
    daemon crash. (CVE-2015-1349)

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://kb.isc.org/article/AA-01247/0/BIND-9.9.7rc2-Release-Notes.html");
  script_set_attribute(attribute:"see_also", value:"https://kb.isc.org/docs/aa-01235");
  script_set_attribute(attribute:"solution", value:"Upgrade to BIND version 9.9.7rc2 or later.");
  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:"vuln_publication_date", value:"2014/12/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/02/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/02/24");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:isc:bind");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"DNS");

  script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");

  script_dependencies("bind_version.nasl");
  script_require_keys("bind/version", "Settings/ParanoidReport");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

ver = get_kb_item_or_exit("bind/version");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# Vuln 9.9.7x < 9.9.7rc2
if (ver =~ "^9\.9\.7([ab][12]|rc1)$")
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Installed version : ' + ver +
      '\n  Fixed version     : 9.9.7rc2' +
      '\n';
    security_hole(port:53, proto:"udp", extra:report);
  }
  else security_hole(port:53, proto:"udp");
}
else audit(AUDIT_LISTEN_NOT_VULN, "BIND", 53, ver, "UDP");