Fortinet FortiOS SSL-VPN Information Disclosure (FG-IR-21-223)

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

include('compat.inc');

if (description)
{
  script_id(166981);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/02/24");

  script_cve_id("CVE-2022-35842");
  script_xref(name:"IAVA", value:"2022-A-0458-S");

  script_name(english:"Fortinet FortiOS SSL-VPN Information Disclosure (FG-IR-21-223)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by an information disclosure vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of FortiOS that is 6.4.x through 6.4.9, or 7.0.x through 7.0.7, or 7.2.0. It is,
therefore, affected by an information disclosure vulnerability in the SSL_VPN. An unauthenticated, remote attacker can
exploit this, to disclose potentially sensitive information.

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-22-223");
  script_set_attribute(attribute:"solution", value:
"Update FortiOS to version 6.4.10, 7.0.7, 7.2.2, or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-35842");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(200);

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/11/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/11/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fortinet:fortios");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("fortinet_version.nbin");
  script_require_keys("Host/Fortigate/model", "Host/Fortigate/version");

  exit(0);
}

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

var app_name = 'FortiOS';
var app_info = vcf::get_app_info(app:app_name, kb_ver:'Host/Fortigate/version');

vcf::fortios::verify_product_and_model(product_name:'FortiGate');

var constraints = [
  { 'min_version': '6.4', 'fixed_version' : '6.4.10' },
  { 'min_version': '7.0', 'fixed_version' : '7.0.7' },
  { 'equal': '7.2.0', 'fixed_display' : '7.2.2' }
];

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