Cisco Firepower Management Center XML Entity Expansion (cisco-sa-fmc-xee-DFzARDcs)

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

include('compat.inc');

if (description)
{
  script_id(145250);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/03");

  script_cve_id("CVE-2021-1267");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvt63027");
  script_xref(name:"CISCO-SA", value:"cisco-sa-fmc-xee-DFzARDcs");
  script_xref(name:"IAVA", value:"2021-A-0033-S");

  script_name(english:"Cisco Firepower Management Center XML Entity Expansion (cisco-sa-fmc-xee-DFzARDcs)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch");
  script_set_attribute(attribute:"description", value:
"The version of Cisco Firepower Management Center (FMC) installed on the remote host is prior to 6.6.1. It is, therefore,
affected by a vulnerability in the dashboard widget that allows an authenticated, remote attacker to cause a denial of
service (DoS) condition on an affected device. The vulnerability is due to improper restrictions on XML entities. An
attacker could exploit this vulnerability by crafting an XML-based widget on an affected server. A successful exploit
could cause increased memory and CPU utilization, which could result in a DoS condition.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xee-DFzARDcs
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cceed7bd");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt63027");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvt63027");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/UI:N/S:U/C:N/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-1267");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(776);

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/01/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/01/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:firepower_management_center");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("cisco_firepower_version.nasl");
  script_require_keys("Host/Cisco/firepower_mc/version");

  exit(0);
}

include('vcf.inc');

app_info = vcf::get_app_info(app:'Cisco Firepower Management Center', kb_ver:'Host/Cisco/firepower_mc/version');
vcf::check_granularity(app_info:app_info, sig_segments:3);

constraints = [
  { 'fixed_version' : '6.6.1' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);