Zoom Workplace for Windows < 6.4.5 / Workplace VDI for Windows < 6.3.12 Buffer Overflow (ZSB-25024)

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

include('compat.inc');

if (description)
{
  script_id(241958);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/21");

  script_cve_id("CVE-2025-46789");
  script_xref(name:"IAVA", value:"2025-A-0504-S");

  script_name(english:"Zoom Workplace for Windows < 6.4.5 / Workplace VDI for Windows < 6.3.12 Buffer Overflow (ZSB-25024)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an application installed that is affected by a buffer overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Zoom Workplace or Zoom Workplace VDI installed on the remote Windows host is prior to 6.4.5 or
6.3.12 respectively. It is, therefore, affected by a buffer overflow vulnerability as referenced in the
ZSB-25024 advisory. A classic buffer overflow vulnerability in certain Zoom Clients for Windows may allow an
authorized user to conduct a denial of service attack via network access.

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.zoom.com/en/trust/security-bulletin/ZSB-25024/");
  script_set_attribute(attribute:"solution", value:
"Upgrade Zoom Workplace for Windows to 6.4.5 or later. Upgrade Zoom Workplace VDI for Windows to 6.3.12 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-46789");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/07/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/07/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:zoom:zoom");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:zoom:meetings");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_set_attribute(attribute:"stig_severity", value:"II");
  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("zoom_client_for_meetings_win_installed.nbin");
  script_require_ports("installed_sw/Zoom Client for Meetings", "Zoom Client for VDI");

  exit(0);
}

include('vcf.inc');

var app_info, constraints;
if (get_kb_item('installed_sw/Zoom Client for Meetings'))
{
  app_info = vcf::get_app_info(app:'Zoom Client for Meetings', win_local:TRUE);
  constraints = [{'fixed_version': '6.4.5'}];
}
else
{
  app_info = vcf::get_app_info(app:'Zoom Client for VDI', win_local:TRUE);  
  constraints = [
    {'fixed_version': '6.2.15'},
    {'min_ver': '6.3.0', 'fixed_version': '6.3.12'}
  ];
}

vcf::check_granularity(app_info:app_info, sig_segments:3);

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