Fortinet FortiWeb - Multiple command injection vulnerabilities (FG-IR-21-157)

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

include('compat.inc');

if (description)
{
  script_id(209817);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/29");

  script_cve_id("CVE-2021-36195");

  script_name(english:"Fortinet FortiWeb - Multiple command injection vulnerabilities (FG-IR-21-157)");

  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 FortiWeb installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the FG-IR-21-157 advisory.

  - Multiple command injection vulnerabilities in the command line interpreter of FortiWeb versions 6.4.1,
    6.4.0, 6.3.0 through 6.3.15, 6.2.0 through 6.2.6, and 6.1.0 through 6.1.2 may allow an authenticated
    attacker to execute arbitrary commands on the underlying system shell via specially crafted command
    arguments. (CVE-2021-36195)

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-21-157");
  script_set_attribute(attribute:"solution", value:
"Please upgrade to FortiWeb version 6.3.16/6.4.2/7.0.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/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-2021-36195");

  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:"plugin_publication_date", value:"2024/10/27");

  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' : '6.1.0', 'max_version' : '6.1.2', 'fixed_version' : '6.3.16' },
  { 'min_version' : '6.2.0', 'max_version' : '6.2.5', 'fixed_version' : '6.3.16' },
  { 'min_version' : '6.3.0', 'max_version' : '6.3.15', 'fixed_version' : '6.3.16' },
  { 'min_version' : '6.4.0', 'max_version' : '6.4.1', 'fixed_version' : '6.4.2' }
];

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