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nessusThis script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.ZOOM_CLIENT_ZSB-22017.NASL
HistoryDec 15, 2022 - 12:00 a.m.

Zoom Client for Meetings < 5.11.3 Vulnerability (ZSB-22017)

2022-12-1500:00:00
This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
12
zoom client
vulnerability
privilege escalation
macos
security update

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

The version of Zoom Client for Meetings installed on the remote host is prior to 5.11.3. It is, therefore, affected by a vulnerability as referenced in the ZSB-22017 advisory.

  • The Zoom Client for Meetings for macOS (Standard and for IT Admin) before version 5.11.3 contain a vulnerability in the package signature validation during the update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root. 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-2022-28751)

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

if (description)
{
  script_id(168805);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/16");

  script_cve_id("CVE-2022-28751");

  script_name(english:"Zoom Client for Meetings < 5.11.3 Vulnerability (ZSB-22017)");

  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 5.11.3. It is, therefore, affected by a
vulnerability as referenced in the ZSB-22017 advisory.

  - The Zoom Client for Meetings for macOS (Standard and for IT Admin) before version 5.11.3 contain a
    vulnerability in the package signature validation during the update process. A local low-privileged user
    could exploit this vulnerability to escalate their privileges to root. 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-2022-28751)

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-22017
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?66185f99");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Zoom Client for Meetings 5.11.3 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-2022-28751");

  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:"2022/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/08/09");
  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:"MacOS X Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("macosx_zoom_installed.nbin");
  script_require_keys("Host/local_checks_enabled", "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' : '5.11.3' }
];

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

8.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

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