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nessusThis script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.ZOOM_CLIENT_ZSB-23012_2.NASL
HistoryNov 03, 2023 - 12:00 a.m.

Zoom VDI Meeting Client < 5.14.0 Vulnerability (ZSB-23012)

2023-11-0300:00:00
This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
21
privilege management
windows
escalation of privilege
zoom client
vulnerability
cve-2023-34120
local access
nessus scanner

CVSS3

8.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

LOW

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

AI Score

7.5

Confidence

High

EPSS

0

Percentile

9.0%

The version of Zoom VDI Meeting Client installed on the remote host is prior to 5.14.0. It is, therefore, affected by a vulnerability as referenced in the ZSB-23012 advisory.

  • Improper privilege management in Zoom for Windows, Zoom Rooms for Windows, and Zoom VDI for Windows clients before 5.14.0 may allow an authenticated user to potentially enable an escalation of privilege via local access. Users may potentially utilize higher level system privileges maintained by the Zoom client to spawn processes with escalated privileges. (CVE-2023-34120)

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(184373);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/03");

  script_cve_id("CVE-2023-34120");

  script_name(english:"Zoom VDI Meeting Client < 5.14.0 Vulnerability (ZSB-23012)");

  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 5.14.0. It is, therefore, affected by a
vulnerability as referenced in the ZSB-23012 advisory.

  - Improper privilege management in Zoom for Windows, Zoom Rooms for Windows, and Zoom VDI for Windows
    clients before 5.14.0 may allow an authenticated user to potentially enable an escalation of privilege via
    local access. Users may potentially utilize higher level system privileges maintained by the Zoom client
    to spawn processes with escalated privileges. (CVE-2023-34120)

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-23012
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cafc1a45");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Zoom VDI Meeting Client 5.14.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-2023-34120");

  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:"2023/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/06/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/03");

  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' : '5.14.0' }
];

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

CVSS3

8.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

LOW

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

AI Score

7.5

Confidence

High

EPSS

0

Percentile

9.0%

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