TeamViewer Remote Full Client (Windows) < 11.0.259324 / 12.x < 12.0.259325 / 13.x < 13.2.36227 / 14.x < 14.7.48809 / 15.x < 15.64.5 / 15.65.x < 15.67 Privilege Escalation (TV-2025-1002)

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

include('compat.inc');

if (description)
{
  script_id(241521);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/08");

  script_cve_id("CVE-2025-36537");

  script_name(english:"TeamViewer Remote Full Client (Windows) < 11.0.259324 / 12.x < 12.0.259325 / 13.x < 13.2.36227 / 14.x < 14.7.48809 / 15.x < 15.64.5 / 15.65.x < 15.67 Privilege Escalation (TV-2025-1002)");

  script_set_attribute(attribute:"synopsis", value:
"A remote access client on the remote Windows host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of TeamViewer Remote Full Client installed on the remote Windows host is prior to 11.0.259324, 12.x prior
to 12.0.259325, 13.x prior to 13.2.36227, 14.x prior to 14.7.48809, 15.x prior to 15.64.5, or 15.65.x prior to 15.67. It
is, therefore, affected by a privilege escalation vulnerability:

  - Incorrect Permission Assignment for Critical Resource in the TeamViewer Client (Full and Host) of TeamViewer Remote
    and Tensor prior Version 15.67 on Windows allows a local unprivileged user to trigger arbitrary file deletion with
    SYSTEM privileges via leveraging the MSI rollback mechanism. The vulnerability only applies to the Remote Management
    features: Backup, Monitoring, and Patch Management. (CVE-2025-36537)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2025-1002/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4c9f57dd");
  script_set_attribute(attribute:"solution", value:
"Upgrade TeamViewer Remote Full Client (Windows) to version 15.67 or the latest version available.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-36537");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/06/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/06/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/07/08");

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

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

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

  script_dependencies("teamviewer_detect.nasl");
  script_require_keys("installed_sw/TeamViewer", "SMB/Registry/Enumerated");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': 'TeamViewer', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'fixed_version':'11.0.259324', 'fixed_display':'15.67 or the latest version available'},
        {'min_version':'12.0.0', 'fixed_version':'12.0.259325', 'fixed_display':'15.67 or the latest version available'},
        {'min_version':'13.0.0', 'fixed_version':'13.2.36227', 'fixed_display':'15.67 or the latest version available'},
        {'min_version':'14.0.0', 'fixed_version':'14.7.48809', 'fixed_display':'15.67 or the latest version available'},
        {'min_version':'15.0.0', 'fixed_version':'15.64.5', 'fixed_display':'15.67 or the latest version available'},
        {'min_version':'15.65.0', 'fixed_version':'15.67', 'fixed_display':'15.67 or the latest version available'}
      ]
    }
  ]
};

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