Cisco Data Center Network Manager Authentication Bypass (cisco-sa-dcnm-auth-bypass-JkubGpu3)

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

include('compat.inc');

if (description)
{
  script_id(139539);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/09/24");

  script_cve_id("CVE-2020-3376");
  script_xref(name:"CISCO-BUG-ID", value:"CSCvt54527");
  script_xref(name:"CISCO-SA", value:"cisco-sa-dcnm-auth-bypass-JkubGpu3");
  script_xref(name:"IAVA", value:"2020-A-0279");

  script_name(english:"Cisco Data Center Network Manager Authentication Bypass (cisco-sa-dcnm-auth-bypass-JkubGpu3)");

  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 Data Center Network Manager is affected by an authentication bypass
vulnerability due to a failure in the software to perform proper authentication. An unauthenticated, remote attacker
can exploit this, by browsing to one of the hosted URLs in Cisco DCNM, in order to bypass authentication and execute
arbitrary actions on an affected device.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.");
  # https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dcnm-auth-bypass-JkubGpu3
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3ac5c05f");
  script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt54527");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvt54527");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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:H/I:H/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-2020-3376");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(306);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/12");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:data_center_network_manager");
  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 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("cisco_prime_dcnm_installed_win.nasl", "cisco_prime_dcnm_installed_linux.nasl", "cisco_prime_dcnm_web_detect.nasl");
  script_require_ports("installed_sw/Cisco Prime DCNM", "installed_sw/cisco_dcnm_web");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

app_info = vcf::cisco_dcnm_web::get_app_info();
vcf::check_granularity(app_info:app_info, sig_segments:3);

constraints = [
  { 'min_version' : '11.0.1.0', 'fixed_version' : '11.4.1.0', 'fixed_display' : '11.4(1)' }
];

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