Detections
Analytics

Fortinet FortiClient 6.4.x < 6.4.3 / 7.x < 7.0.2 Privilege Escalation (FG-IR-20-079)

high Nessus Plugin ID 155788

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Synopsis

The remote Windows host is affected by a privilege escalation.

Description

The version of Fortinet FortiClient running on the remote host is 6.4.x prior to 6.4.3 or 7.x prior to 7.0.2. It is, therefore, affected by a privilege escalation vulnerability due to improper authorization. An unauthenticated, local attacker can exploit this, via the named pipe responsible for FortiClient updates, to escalate privileges to SYSTEM.

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

Solution

Upgrade to Fortinet FortiClient 6.4.3, 7.0.2, or later.

See Also

https://www.fortiguard.com/psirt/FG-IR-20-079

Plugin Details

Severity: High

ID: 155788

File Name: forticlient_FG-IR-20-079.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 12/2/2021

Updated: 2/24/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-36183

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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: 2/9/2021

Vulnerability Publication Date: 11/2/2021

Reference Information

CVE: CVE-2021-36183

IAVA: 2021-A-0562-S