Cisco Firepower Management Center DoS (cisco-sa-fmc-dos-3WymYWKh)

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

include('compat.inc');

if (description)
{
  script_id(142213);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/03/31");

  script_cve_id("CVE-2020-3557");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvt54267");
  script_xref(name:"CISCO-SA", value:"cisco-sa-fmc-dos-3WymYWKh");
  script_xref(name:"IAVA", value:"2020-A-0488-S");

  script_name(english:"Cisco Firepower Management Center DoS (cisco-sa-fmc-dos-3WymYWKh)");

  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, Cisco Firepower Management Center is affected by a denial of service (DoS) 
vulnerability in its host input API daemon component due to improper certificate validation. An unauthenticated, local 
attacker can exploit this issue, by sending a crafted data stream to the host input daemon of an affected device, to 
impose a DoS condition.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dos-3WymYWKh
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2c34b508");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt54267");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvt54267");
  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:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-3557");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(295);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/10/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/11/02");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  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:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include('vcf.inc');

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

# Only vuln if device configured to use host input client feature.
if (report_paranoia < 2)
  audit(AUDIT_PARANOID);

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
);