OS Command Injection in Fortinet FortiClient for Windows - CVE-2021-22127
Published: September 8, 2021
Vulnerability identifier: #VU56394
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-22127
CWE-ID: CWE-78
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation. A remote unauthenticated attacker on the local network can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Fortinet FortiClient for Windows
How to mitigate CVE-2021-22127
Install updates from vendor's website.
Fortinet FortiClient for Windows - addressed in versions 6.2.9, 6.4.3