Juniper Junos DNSSEC Validation DoS (PSN-2013-04-918)

2013-05-20T00:00:00
ID JUNIPER_PSN-2013-04-918.NASL
Type nessus
Reporter Tenable
Modified 2018-07-12T00:00:00

Description

According to its self-reported version number, the remote Junos device has a denial of service vulnerability. When DNSSEC is enabled and validation is active, a high query load can cause the host to crash. A remote, unauthenticated attacker could exploit this to crash the host.

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

include("compat.inc");

if (description)
{
  script_id(66516);
  script_version("1.9");
  script_cvs_date("Date: 2018/07/12 19:01:15");

  script_cve_id("CVE-2012-3817");
  script_bugtraq_id(54658);

  script_name(english:"Juniper Junos DNSSEC Validation DoS (PSN-2013-04-918)");
  script_summary(english:"Checks version and build date");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote device is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description",
    value:
"According to its self-reported version number, the remote Junos device
has a denial of service vulnerability.  When DNSSEC is enabled and
validation is active, a high query load can cause the host to crash.  A
remote, unauthenticated attacker could exploit this to crash the host."
  );
  # http://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2013-04-918&viewMode=view
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?84f5b57a");
  script_set_attribute(
    attribute:"solution",
    value:
"Apply the relevant Junos upgrade referenced in Juniper advisory
PSN-2013-04-918."
  );
  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:"2012/07/24");  # CVE-2012-3817 publicly disclosed
  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/08"); # this is when Juniper patched it in their products
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/05/20");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Junos Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2013-2018 Tenable Network Security, Inc.");

  script_dependencies("junos_version.nasl");
  script_require_keys("Host/Juniper/JUNOS/Version", "Host/Juniper/JUNOS/BuildDate");

  exit(0);
}

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

ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');
build_date = get_kb_item_or_exit('Host/Juniper/JUNOS/BuildDate');

if (compare_build_dates(build_date, '2013-02-13') >= 0)
  audit(AUDIT_INST_VER_NOT_VULN, 'Junos', ver + ' (build date ' + build_date + ')');

fixes['10.4'] = '10.4R13';
fixes['11.4'] = '11.4R6';
fixes['11.4X'] = '11.4X27.37';
fixes['12.1'] = '12.1R5';
fixes['12.1X44'] = '12.1X44-D15';
fixes['12.2'] = '12.2R3';
fixes['12.3X50'] = '12.3X50-D11';
fixes['12.3'] = '12.3R1';

fix = check_junos(ver:ver, fixes:fixes, exit_on_fail:TRUE);

if (report_verbosity > 0)
{
  report =
    '\n  Installed version : ' + ver +
    '\n  Fixed version     : ' + fix + '\n';
  security_hole(port:0, extra:report);
}
else security_hole(0);