CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
17.5%
Zoom Client is prone to a cryptographic signature verification
vulnerability.
# SPDX-FileCopyrightText: 2023 Greenbone AG
# 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-only
CPE = "cpe:/a:zoom:zoom";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.149878");
script_version("2023-10-13T16:09:03+0000");
script_tag(name:"last_modification", value:"2023-10-13 16:09:03 +0000 (Fri, 13 Oct 2023)");
script_tag(name:"creation_date", value:"2023-07-05 04:40:54 +0000 (Wed, 05 Jul 2023)");
script_tag(name:"cvss_base", value:"6.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:C/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2023-06-21 20:53:00 +0000 (Wed, 21 Jun 2023)");
script_cve_id("CVE-2023-28602");
script_tag(name:"qod_type", value:"executable_version");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Zoom Client < 5.13.5 Cryptographic Signature Verification Vulnerability (ZSB-23010) - Windows");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2023 Greenbone AG");
script_family("General");
script_dependencies("gb_zoom_client_smb_login_detect.nasl");
script_mandatory_keys("zoom/client/win/detected");
script_tag(name:"summary", value:"Zoom Client is prone to a cryptographic signature verification
vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"Zoom for Windows clients contain an improper verification of
cryptographic signature vulnerability. A malicious user may potentially downgrade Zoom Client
components to previous versions.");
script_tag(name:"affected", value:"Zoom Client prior to version 5.13.5.");
script_tag(name:"solution", value:"Update to version 5.13.5 or later.");
script_xref(name:"URL", value:"https://explore.zoom.us/en/trust/security/security-bulletin/");
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: "5.13.5")) {
report = report_fixed_ver(installed_version: version, fixed_version: "5.13.5", install_path: location);
security_message(port: 0, data: report);
exit(0);
}
exit(99);
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
17.5%