ISC BIND 9 Multiple DoS

2016-03-17T00:00:00
ID BIND9_CVE-2016-1286.NASL
Type nessus
Reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2021-01-02T00:00:00

Description

According to its self-reported version number, the instance of ISC BIND running on the remote name server is affected by multiple denial of service vulnerabilities :

  • A denial of service vulnerability exists in files resolver.c and db.c when handling DNAME resource signatures. An unauthenticated, remote attacker can exploit this, via a crafted query that generates a response containing a signature record, to cause an assertion failure and daemon exit. (CVE-2016-1286)

  • A denial of service vulnerability exists in resolver.c when DNS cookies are enabled. An unauthenticated, remote attacker can exploit this, via a malformed cookie with more than one cookie option, to cause an INSIST assertion failure and daemon exit. (CVE-2016-2088)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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

include("compat.inc");

if (description)
{
  script_id(89999);
  script_version("1.13");
  script_cvs_date("Date: 2019/11/20");

  script_cve_id("CVE-2016-1286", "CVE-2016-2088");

  script_name(english:"ISC BIND 9 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 running on the remote name server is affected by multiple denial
of service vulnerabilities :

  - A denial of service vulnerability exists in files
    resolver.c and db.c when handling DNAME resource
    signatures. An unauthenticated, remote attacker can
    exploit this, via a crafted query that generates a
    response containing a signature record, to cause an
    assertion failure and daemon exit. (CVE-2016-1286)

  - A denial of service vulnerability exists in resolver.c
    when DNS cookies are enabled. An unauthenticated, remote
    attacker can exploit this, via a malformed cookie with
    more than one cookie option, to cause an INSIST
    assertion failure and daemon exit. (CVE-2016-2088)

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/docs/aa-01353");
  script_set_attribute(attribute:"see_also", value:"https://kb.isc.org/article/AA-01362/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ISC BIND version 9.9.8-P4 / 9.9.8-S6 / 9.10.3-P4 or later.
Note that version 9.9.8-S6 is a preview version of BIND provided
exclusively to ISC Support customers. Additionally, the fix for
CVE-2016-2088 is only available in version 9.10.3-P4.");
  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:C/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-2016-1286");

  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:"2016/03/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/03/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/17");

  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) 2016-2019 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.x < 9.9.8-P4/9.9.8-S6
  ver =~ "^9\.[0-8]\.[0-9](([ab]|beta|rc|-[PS])[0-9]*)?$" ||
  ver =~ "^9\.9\.[0-7](([ab]|beta|rc|-[PS])[0-9]*)?$" ||
  ver =~ "^9\.9\.8((([ab]|beta|rc)[0-9]*)|(-P[0-3])|(-S[0-5]))?$" ||

  # 9.10.x < 9.10.3-P4
  ver =~ "^9\.10\.[0-2](([ab]|beta|rc|-[PS])[0-9]*)?$" ||
  ver =~ "^9\.10\.3((([ab]|beta|rc)[0-9]*)|(-P[0-3]))?$"
)
{
  if (report_verbosity > 0)
  {
    items = make_array(
      "Installed version", ver,
      "Fixed version", "9.9.8-P4 / 9.9.8-S6 / 9.10.3-P4"
    );
    order = make_list("Installed version", "Fixed version");
    security_warning(
      port:53,
      proto:"udp",
      extra:report_items_str(
        report_items:items,
        ordered_fields:order
      )
    );
  }
  else security_warning(port:53, proto:"udp");
}
else audit(AUDIT_LISTEN_NOT_VULN, "BIND", 53, ver, "UDP");