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openvasCopyright (C) 2021 Greenbone Networks GmbHOPENVAS:1361412562310147229
HistoryNov 26, 2021 - 12:00 a.m.

Zoom Client < 5.8.4 Multiple Vulnerabilities (ZSB-21019, ZSB-21020) - Windows

2021-11-2600:00:00
Copyright (C) 2021 Greenbone Networks GmbH
plugins.openvas.org
10
windows
vulnerabilities
buffer overflow
process memory exposure
update
security bulletin

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.8

Confidence

High

EPSS

0.004

Percentile

72.2%

The Zoom Client is prone to multiple vulnerabilities.

# Copyright (C) 2021 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:zoom:zoom";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.147229");
  script_version("2022-01-20T13:51:30+0000");
  script_tag(name:"last_modification", value:"2022-01-20 13:51:30 +0000 (Thu, 20 Jan 2022)");
  script_tag(name:"creation_date", value:"2021-11-26 03:51:19 +0000 (Fri, 26 Nov 2021)");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-12-03 17:55:00 +0000 (Fri, 03 Dec 2021)");

  script_cve_id("CVE-2021-34423", "CVE-2021-34424");

  script_tag(name:"qod_type", value:"executable_version");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("Zoom Client < 5.8.4 Multiple Vulnerabilities (ZSB-21019, ZSB-21020) - Windows");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_zoom_client_smb_login_detect.nasl");
  script_mandatory_keys("zoom/client/win/detected");

  script_tag(name:"summary", value:"The Zoom Client is prone to multiple vulnerabilities.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The following vulnerabilities exist:

  - CVE-2021-34423: Buffer overflow

  - CVE-2021-34424: Process memory exposure");

  script_tag(name:"affected", value:"Zoom Client prior to version 5.8.4.");

  script_tag(name:"solution", value:"Update to version 5.8.4 or later.");

  script_xref(name:"URL", value:"https://explore.zoom.us/en/trust/security/security-bulletin/");
  script_xref(name:"URL", value:"https://googleprojectzero.blogspot.com/2022/01/zooming-in-on-zero-click-exploits.html");
  script_xref(name:"URL", value:"https://bugs.chromium.org/p/project-zero/issues/detail?id=2223");
  script_xref(name:"URL", value:"https://bugs.chromium.org/p/project-zero/issues/detail?id=2235");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if (!infos = get_app_version_and_location(cpe: CPE, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
location = infos["location"];

if (version_is_less(version: version, test_version: "5.8.4")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "5.8.4", install_path: location);
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.8

Confidence

High

EPSS

0.004

Percentile

72.2%