OpenVPN 2.5.x < 2.5.10, 2.6.x < 2.6.10 Multiple Vulnerabilities (Windows)

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

include('compat.inc');

if (description)
{
  script_id(205311);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/16");

  script_cve_id("CVE-2024-24974", "CVE-2024-27459", "CVE-2024-27903");
  script_xref(name:"IAVA", value:"2024-A-0491");

  script_name(english:"OpenVPN 2.5.x < 2.5.10, 2.6.x < 2.6.10 Multiple Vulnerabilities (Windows)");

  script_set_attribute(attribute:"synopsis", value:
"An application on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the version of OpenVPN installed on the remote Windows host is affected
by multiple vulnerabilities: 

  - OpenVPN plug-ins on Windows with OpenVPN 2.6.9 and earlier could be loaded from any directory, which allows an 
    attacker to load an arbitrary plug-in which can be used to interact with the privileged OpenVPN interactive 
    service. (CVE-2024-27903)

  - The interactive service in OpenVPN 2.6.9 and earlier allows the OpenVPN service pipe to be accessed remotely, 
    which allows a remote attacker to interact with the privileged OpenVPN interactive service. (CVE-2024-24974)

  - The interactive service in OpenVPN 2.6.9 and earlier allows an attacker to send data causing a stack overflow 
    which can be used to execute arbitrary code with more privileges. (CVE-2024-27459)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://openvpn.net/security-advisory/ovpnx-vulnerability-cve-2024-27903-cve-2024-27459-cve-2024-24974/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f687002b");
  script_set_attribute(attribute:"solution", value:
"Upgrade to OpenVPN 2.5.10, 2.6.10 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/PR:N/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-2024-27903");

  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:"2024/07/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/07/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:openvpn:openvpn");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

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

  script_dependencies("openvpn_server_installed.nbin");
  script_require_keys("installed_sw/OpenVPN Server");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::get_app_info(app:'OpenVPN Server');

var constraints = [
  { 'min_version' : '2.5.0', 'fixed_version' : '2.5.10' },
  { 'min_version' : '2.6.0', 'fixed_version' : '2.6.10' }
];

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