FreePBX 17.0.2.36 < 17.0.3 Command Injection (GHSA-vm9p-46mv-5xvw)

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

include('compat.inc');

if (description)
{
  script_id(298039);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/06");

  script_cve_id("CVE-2025-64328");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2026/02/24");

  script_name(english:"FreePBX 17.0.2.36 < 17.0.3 Command Injection (GHSA-vm9p-46mv-5xvw)");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts a PHP application that is affected by a command injection vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of FreePBX installed on the remote host is 17.0.2.36 or later but prior to 17.0.3. It is, therefore,
affected by a command injection vulnerability:

  - The filestore module within the Administrative interface is vulnerable to a post-authentication command
    injection by an authenticated known user via the testconnection -> check_ssh_connect() function. An
    attacker can leverage this vulnerability to obtain remote access to the system as an asterisk user.
    (CVE-2025-64328)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vm9p-46mv-5xvw
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f2ef34bb");
  script_set_attribute(attribute:"solution", value:
"Upgrade to FreePBX version 17.0.3 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:A");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-64328");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/11/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/11/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/05");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:freepbx:freepbx");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("freepbx_detect.nasl");
  script_require_keys("installed_sw/FreePBX");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

var app = 'FreePBX';
get_install_count(app_name:app, exit_if_zero:TRUE);

var port = get_http_port(default:80, php:TRUE);
var app_info = vcf::get_app_info(app:app, port:port, webapp:TRUE);

# Require 4 version segments for 17.0.2.x to distinguish 17.0.2.35 (not vuln) from 17.0.2.36+ (vuln)
if (app_info.version =~ "^17\.0\.2($|[^0-9])")
  vcf::check_granularity(app_info:app_info, sig_segments:4);

var constraints = [
  {'min_version': '17.0.2.36', 'fixed_version': '17.0.3'}
];

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