ISC BIND 9 < 9.9.9-P5 / 9.9.9-S7 / 9.10.4-P5 / 9.11.0-P2 Multiple DoS

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

include("compat.inc");

if (description)
{
  script_id(96625);
  script_version("1.11");
  script_cvs_date("Date: 2018/12/07 17:08:17");

  script_cve_id(
    "CVE-2016-9131",
    "CVE-2016-9147",
    "CVE-2016-9444",
    "CVE-2016-9778"
  );
  script_bugtraq_id(
    95386,
    95388,
    95390,
    95393
  );

  script_name(english:"ISC BIND 9 < 9.9.9-P5 / 9.9.9-S7 / 9.10.4-P5 / 9.11.0-P2 Multiple DoS");
  script_summary(english:"Checks the version of BIND.");

  script_set_attribute(attribute:"synopsis", value:
"The remote name server is affected by multiple denial of service
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the instance of ISC
BIND 9 running on the remote name server is 9.9.x prior to 9.9.9-P5 or
9.9.9-S7, 9.10.x prior to 9.10.4-P5, or 9.11.x prior to 9.11.0-P2. It
is, therefore, affected by multiple denial of service
vulnerabilities :

  - A denial of service vulnerability exists in named due to
    a flaw that is triggered during the handling of a
    specially crafted answer packet in a response to an
    RTYPE ANY query. An unauthenticated, remote attacker can
    exploit this to cause an assertion failure and daemon
    exit. Note that this vulnerability affects versions
    9.4.0 to 9.6-ESV-R11-W1, 9.8.5 to 9.8.8, 9.9.3 to
    9.9.9-P4, 9.9.9-S1 to 9.9.9-S6, 9.10.0 to 9.10.4-P4, and
    9.11.0 to 9.11.0-P1. (CVE-2016-9131)

  - A denial of service vulnerability exists in named in
    DNSSEC-enabled authoritative servers that is triggered
    during the handling of a query response that contains
    inconsistent DNSSEC information. An unauthenticated,
    remote attacker can exploit this to cause an assertion
    failure and daemon exit. Note that this vulnerability
    affects versions 9.9.9-P4, 9.9.9-S6, 9.10.4-P4, and
    9.11.0-P1. (CVE-2016-9147)

  - A denial of service vulnerability exists in named due to
    a flaw that is triggered during the handling of a
    specially crafted answer that contains a DS resource
    record. An unauthenticated, remote attacker can exploit
    this to cause an assertion failure and daemon exit. Note
    that this vulnerability affects versions 9.6-ESV-R9 to
    9.6-ESV-R11-W1, 9.8.5 to 9.8.8, 9.9.3 to 9.9.9-P4,
    9.9.9-S1 to 9.9.9-S6, 9.10.0 to 9.10.4-P4, and 9.11.0 to
    9.11.0-P1. (CVE-2016-9444)

  - A denial of service vulnerability exists in named in the
    nxdomain-redirect functionality that is triggered when
    handling a specially crafted query. An unauthenticated,
    remote attacker can exploit this to cause a REQUIRE
    assertion failure and daemon exit. Note that this
    vulnerability affects versions 9.9.8-S1 to 9.9.8-S3,
    9.9.9-S1 to 9.9.9-S6, and 9.11.0-9.11.0 to P1.
    (CVE-2016-9778)

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-01439");
  script_set_attribute(attribute:"see_also", value:"https://kb.isc.org/article/AA-01440");
  script_set_attribute(attribute:"see_also", value:"https://kb.isc.org/article/AA-01441");
  script_set_attribute(attribute:"see_also", value:"https://kb.isc.org/docs/aa-01442");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ISC BIND version 9.9.9-P5 / 9.9.9-S7 / 9.10.4-P5 /
9.11.0-P2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-9131");
  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:"2017/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/19");

  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) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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);

if (
  # 9.4.0 - 9.6
  ver =~ "^9\.[4-6]($|[^0-9])" ||

  # 9.8.5 - 9.8.8
  ver =~ "^9\.8\.[5-8]($|[^0-9])" ||

  # 9.9.3 - 9.9.8
  ver =~ "^9\.9\.[3-8]($|[^0-9])" ||

  # 9.9.8-S1 - 9.9.8-S3
  ver =~ "^9\.9\.8(-S[1-3])$" ||

  # 9.9.9 <= 9.9.9-P4/9.9.9-S6
  ver =~ "^9\.9\.9((([ab]|beta|rc)[0-9]*)|(-P[0-4])|(-S[0-6]))?$" ||

  # 9.10.x <= 9.10.4-P4
  ver =~ "^9\.10\.[0-3]($|[^0-9])" ||
  ver =~ "^9\.10\.4((([ab]|beta|rc)[0-9]*)|(-P[0-4]))?$" ||

  # 9.11.0.x <= 9.11.0-P1
  ver =~ "^9\.11\.0((([ab]|beta|rc)[0-9]*)|(-P[0-1]))?$"
)
{
  items = make_array(
    "Installed version", ver,
    "Fixed version", "9.9.9-P5 / 9.9.9-S7 / 9.10.4-P5 / 9.11.0-P2"
  );
  order = make_list("Installed version", "Fixed version");
  security_report_v4(
    severity:SECURITY_WARNING,
    port:53,
    proto:"udp",
    extra:report_items_str(
      report_items:items,
      ordered_fields:order
    )
  );
}
else audit(AUDIT_LISTEN_NOT_VULN, "BIND", 53, ver, "UDP");