Fortinet FortiWeb - Heap based overflow in CLI (FG-IR-22-111)

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

include('compat.inc');

if (description)
{
  script_id(197616);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/22");

  script_cve_id("CVE-2023-23782");

  script_name(english:"Fortinet FortiWeb - Heap based overflow in CLI (FG-IR-22-111)");

  script_set_attribute(attribute:"synopsis", value:
"Fortinet Firewall is affected by a privilege escalation.");
  script_set_attribute(attribute:"description", value:
"The version of FortiWeb installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the FG-IR-22-111 advisory.

  - A heap-based buffer overflow in Fortinet FortiWeb version 7.0.0 through 7.0.1, FortiWeb version 6.3.0
    through 6.3.19, FortiWeb 6.4 all versions, FortiWeb 6.2 all versions, FortiWeb 6.1 all versions allows
    attacker to escalation of privilege via specifically crafted arguments to existing commands.
    (CVE-2023-23782)

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-22-111");
  script_set_attribute(attribute:"solution", value:
"Upgrade to FortiWeb version 6.3.20 / 7.0.2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/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-2023-23782");

  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:"2023/02/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/02/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/22");

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

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

  script_copyright(english:"This script is Copyright (C) 2024 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_extras_fortios.inc');

var app_name = 'FortiWeb';
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' : '6.0.0', 'max_version' : '6.0.8', 'fixed_version' : '6.3.20', 'fixed_display' : '6.3.20' },
  { 'min_version' : '6.1.0', 'max_version' : '6.1.3', 'fixed_version' : '6.3.20', 'fixed_display' : '6.3.20' },
  { 'min_version' : '6.2.0', 'max_version' : '6.2.7', 'fixed_version' : '6.3.20', 'fixed_display' : '6.3.20' },
  { 'min_version' : '6.3.0', 'fixed_version' : '6.3.20' },
  { 'min_version' : '6.4.0', 'max_version' : '6.4.2', 'fixed_version' : '7.0.2', 'fixed_display' : '7.0.2' },
  { 'min_version' : '7.0.0', 'fixed_version' : '7.0.2' }
];

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