Fortinet FortiClient (FG-IR-21-075)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(200527);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/14");

  script_cve_id("CVE-2021-41028");

  script_name(english:"Fortinet FortiClient  (FG-IR-21-075)");

  script_set_attribute(attribute:"synopsis", value:
"remote Windows host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The version of FortiClient installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the FG-IR-21-075 advisory.

  - A combination of a use of hard-coded cryptographic key vulnerability [CWE-321] in FortiClientEMS 7.0.1 and
    below, 6.4.6 and below and an improper certificate validation vulnerability [CWE-297] in
    FortiClientWindows, FortiClientLinux and FortiClientMac 7.0.1 and below, 6.4.6 and below may allow an
    unauthenticated and network adjacent attacker to perform a man-in-the-middle attack between the EMS and
    the FCT via the telemetry protocol. (CVE-2021-41028)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.fortiguard.com/psirt/FG-IR-21-075");
  script_set_attribute(attribute:"solution", value:
"Please ugrade to FortiClientEMS version 7.0.2 or above.
Please ugrade to FortiClientEMS version 6.4.7 or above.
Please upgrade to FortiClientWindows 7.0.2 or above.
Please upgrade to FortiClientWindows 6.4.7 or above.
Please upgrade to FortiClientLinux 7.0.2 or above.
Please upgrade to FortiClientLinux 6.4.7 or above.
Please upgrade to FortiClientMac 7.0.2 or above.
Please upgrade to FortiClientMac 6.4.7 or above.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/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:A/AC:H/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-2021-41028");

  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:"2021/12/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/12/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/06/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:fortinet:forticlient");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("forticlient_detect.nbin");
  script_require_keys("installed_sw/FortiClient");

  exit(0);
}

include('vcf.inc');

if (empty_or_null(get_kb_item('Host/local_checks_enabled'))) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_kb_item('SMB/Registry/Enumerated'))) audit(AUDIT_OS_NOT, 'Windows');

var app_name = 'FortiClient';
var app_info = vcf::get_app_info(app:app_name);

var constraints = [
  { 'min_version' : '7.0.0', 'max_version' : '7.0.1', 'fixed_version' : '7.0.2' }
];

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