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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.ZOOM_CLIENT_ZSB-23049.NASL
HistoryNov 14, 2023 - 12:00 a.m.

Zoom VDI Meeting Client < 5.16.0 Vulnerability (ZSB-23049)

2023-11-1400:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
1
zoom vdi meeting client
vulnerability
zsb-23049
denial of service
network access
authenticated user
security updates
nessus scanner

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.5%

The version of Zoom VDI Meeting Client installed on the remote host is prior to 5.16.0. It is, therefore, affected by a vulnerability as referenced in the ZSB-23049 advisory.

  • Improper conditions check in Zoom Team Chat for Zoom clients may allow an authenticated user to conduct a denial of service via network access. 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-2023-39205)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

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

include('compat.inc');

if (description)
{
  script_id(185545);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/21");

  script_cve_id("CVE-2023-39205");

  script_name(english:"Zoom VDI Meeting Client < 5.16.0 Vulnerability (ZSB-23049)");

  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 VDI Meeting Client installed on the remote host is prior to 5.16.0. It is, therefore, affected by a
vulnerability as referenced in the ZSB-23049 advisory.

  - Improper conditions check in Zoom Team Chat for Zoom clients may allow an authenticated user to conduct a
    denial of service via network access. 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-2023-39205)

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-23049
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9f5586d0");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Zoom VDI Meeting Client 5.16.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/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:L/UI:N/S:U/C:N/I:N/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-2023-39205");

  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:"2023/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/11/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/14");

  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:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 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 VDI");

  exit(0);
}

include('vcf.inc');

var app_info = NULL;

app_info = vcf::get_app_info(app:'Zoom Client for VDI', win_local:TRUE);

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

var constraints = [
  { 'fixed_version' : '5.16.0' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);
VendorProductVersionCPE
zoomzoomcpe:/a:zoom:zoom
zoommeetingscpe:/a:zoom:meetings

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.5%

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