Zoom Client for Meetings < 5.5.4 Vulnerability (ZSB-21016)

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

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(168815);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/16");

  script_cve_id("CVE-2021-34420");

  script_name(english:"Zoom Client for Meetings < 5.5.4 Vulnerability (ZSB-21016)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has an application installed that is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Zoom Client for Meetings installed on the remote host is prior to 5.5.4. It is, therefore, affected by a
vulnerability as referenced in the ZSB-21016 advisory.

  - The Zoom Client for Meetings for Windows installer before version 5.5.4 does not properly verify the
    signature of files with .msi, .ps1, and .bat extensions. This could lead to a malicious actor installing
    malicious software on a customer's computer. Zoom addressed this issue in the 5.5.4 Zoom Client for
    Meetings for Windows release. Users can help keep themselves secure by applying current updates or
    downloading the latest Zoom software with all current security updates from https://zoom.us/download.
    (CVE-2021-34420)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://explore.zoom.us/en/trust/security/security-bulletin/?filter-cve=&filter=&keywords=ZSB-21016
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?aae4ca4c");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Zoom Client for Meetings 5.5.4 or later.");
  script_set_attribute(attribute:"agent", value:"windows");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  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:R/S:C/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-34420");

  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:"2021/11/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/12/15");

  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_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022 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", "installed_sw/zoom");

  exit(0);
}

include('vcf.inc');

var app_info = NULL;

if (get_kb_item('installed_sw/Zoom Client for Meetings'))
  app_info = vcf::get_app_info(app:'Zoom Client for Meetings', win_local:TRUE);
else
  app_info = vcf::get_app_info(app:'zoom');

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

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  { 'fixed_version' : '5.5.4' }
];

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