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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.FORTIGATE_FG-IR-22-381.NASL
HistoryApr 13, 2023 - 12:00 a.m.

Fortinet Fortigate - Policy-based NGFW SSL VPN mode doesn't filter accesses via Bookmarks (FG-IR-22-381)

2023-04-1300:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
12
fortinet
policy-based
ngfw
ssl vpn
vulnerability
bypass
bookmarks
cwe-183
cve-2022-42469
scanner

EPSS

0.001

Percentile

17.5%

The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-22-381 advisory.

  • A permissive list of allowed inputs vulnerability [CWE-183] in FortiGate version 7.2.3 and below, version 7.0.9 and below Policy-based NGFW Mode may allow an authenticated SSL-VPN user to bypass the policy via bookmarks in the web portal. (CVE-2022-42469)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

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

include('compat.inc');

if (description)
{
  script_id(174263);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/06/15");

  script_cve_id("CVE-2022-42469");
  script_xref(name:"IAVA", value:"2023-A-0198-S");

  script_name(english:"Fortinet Fortigate - Policy-based NGFW SSL VPN mode doesn't filter accesses via Bookmarks (FG-IR-22-381)");

  script_set_attribute(attribute:"synopsis", value:
"Fortinet Firewall is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the FG-IR-22-381 advisory.

  - A permissive list of allowed inputs vulnerability [CWE-183] in FortiGate version 7.2.3 and below, version
    7.0.9 and below Policy-based NGFW Mode may allow an authenticated SSL-VPN user to bypass the policy via
    bookmarks in the web portal. (CVE-2022-42469)

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-22-381");
  script_set_attribute(attribute:"solution", value:
"Please upgrade to FortiOS version 7.2.4 or above 
Please upgrade to FortiOS version 7.0.11 or above");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/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:L/UI:N/S:U/C:N/I:L/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-2022-42469");

  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:"2023/04/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/04/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/04/13");

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

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

  script_copyright(english:"This script is Copyright (C) 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 = 'Fortigate';
var app_info = vcf::get_app_info(app:app_name, kb_ver:'Host/Fortigate/version');
vcf::fortios::verify_product_and_model(product_name:app_name);

var constraints = [
  { 'min_version' : '7.0.0', 'max_version' : '7.0.9', 'fixed_display' : '7.0.11' },
  { 'min_version' : '7.2.0', 'fixed_version' : '7.2.4' }
];

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

EPSS

0.001

Percentile

17.5%

Related for FORTIGATE_FG-IR-22-381.NASL