Detections
Analytics

Fortinet FortiClient (FG-IR-21-075)

high Nessus Plugin ID 200527

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Synopsis

remote Windows host is missing one or more security-related updates.

Description

The version of FortiClient installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-21-075 advisory.

 - A combination of a use of hard-coded cryptographic key vulnerability [CWE-321] in FortiClientEMS 7.0.1 and below, 6.4.6 and below and an improper certificate validation vulnerability [CWE-297] in FortiClientWindows, FortiClientLinux and FortiClientMac 7.0.1 and below, 6.4.6 and below may allow an unauthenticated and network adjacent attacker to perform a man-in-the-middle attack between the EMS and the FCT via the telemetry protocol. (CVE-2021-41028)

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

Solution

Please ugrade to FortiClientEMS version 7.0.2 or above.
Please ugrade to FortiClientEMS version 6.4.7 or above.
Please upgrade to FortiClientWindows 7.0.2 or above.
Please upgrade to FortiClientWindows 6.4.7 or above.
Please upgrade to FortiClientLinux 7.0.2 or above.
Please upgrade to FortiClientLinux 6.4.7 or above.
Please upgrade to FortiClientMac 7.0.2 or above.
Please upgrade to FortiClientMac 6.4.7 or above.

See Also

https://www.fortiguard.com/psirt/FG-IR-21-075

Plugin Details

Severity: High

ID: 200527

File Name: forticlient_FG-IR-21-075.nasl

Version: 1.1

Type: local

Agent: windows

Family: Windows

Published: 6/14/2024

Updated: 6/14/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

Vector: CVSS2#AV:A/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-41028

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:fortinet:forticlient

Required KB Items: installed_sw/FortiClient

Exploit Ease: No known exploits are available

Patch Publication Date: 12/7/2021

Vulnerability Publication Date: 12/7/2021

Reference Information

CVE: CVE-2021-41028