BeyondTrust Privilege Management for Windows < 25.2 Privilege Escalation (BT25-01)

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

include('compat.inc');

if (description)
{
  script_id(237201);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/21");

  script_cve_id("CVE-2025-0889");
  script_xref(name:"IAVA", value:"2025-A-0139-S");

  script_name(english:"BeyondTrust Privilege Management for Windows < 25.2 Privilege Escalation (BT25-01)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of BeyondTrust Privilege Management for Windows installed on the remote host is prior to 25.2. It is,
therefore, affected by a vulnerability as referenced in the BT25-01 advisory.

  - Prior to 25.2, a local authenticated attacker can elevate privileges on a system with Privilege Management
    for Windows installed, via the manipulation of COM objects under certain circumstances where an EPM policy
    allows for automatic privilege elevation of a user process. (CVE-2025-0889)

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.beyondtrust.com/trust-center/security-advisories/bt25-01");
  script_set_attribute(attribute:"solution", value:
"Upgrade to BeyondTrust Privilege Management for Windows version 25.2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-0889");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/02/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/02/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/05/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:beyondtrust:privilege_management_for_windows");
  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) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("beyondtrust_privilege_management_win_installed.nbin");
  script_require_keys("installed_sw/BeyondTrust Privilege Management for Windows");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': 'BeyondTrust Privilege Management for Windows', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
        { 'fixed_version' : '25.2' }
      ]
    }
  ]
};

var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);