Fortinet FortiProxy Out-of-bound Write in sslvpnd (FG-IR-24-255)

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

include('compat.inc');

if (description)
{
  script_id(211865);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/01/09");

  script_cve_id("CVE-2024-3596");

  script_name(english:"Fortinet FortiProxy Out-of-bound Write in sslvpnd (FG-IR-24-255)");

  script_set_attribute(attribute:"synopsis", value:
"The version of FortiProxy installed on the remote host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response 
(Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack 
against MD5 Response Authenticator signature.

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-24-255");
  script_set_attribute(attribute:"solution", value:
"Please upgrade to FortiProxy version 7.4.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/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:N/AC:H/PR:N/UI:N/S:C/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-2024-3596");

  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:"2024/08/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/08/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/11/26");

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

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

  script_copyright(english:"This script is Copyright (C) 2024-2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

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

var app_name = 'FortiProxy';
var app_info = vcf::get_app_info(app:app_name, kb_ver:'Host/FortiProxy/version');
vcf::fortios::verify_product_and_model(product_name:app_name);

var constraints = [
  { 'min_version' : '7.0', 'max_version' : '7.0.999', 'fixed_version' : '7.4.6' },
  { 'min_version' : '7.2', 'max_version' : '7.2.999', 'fixed_version' : '7.4.6' },
  { 'min_version' : '7.4', 'max_version' : '7.4.5.999', 'fixed_version' : '7.4.6' }
];

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