Insecure DLL loading in Fortinet FortiClient for Windows - CVE-2020-9290
Published: March 15, 2020 / Updated: October 6, 2020
Vulnerability identifier: #VU47346
CSH Severity: Low
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-9290
CWE-ID: CWE-427
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to the application loads DLL libraries in an insecure manner. A local attacker with control over the directory in which FortiClientOnlineInstaller.exe and FortiClientVPNOnlineInstaller.exe resides can execute arbitrary code on the system via uploading malicious Filter Library DLL files in that directory.
Affected software
Fortinet FortiClient for Windows
How to mitigate CVE-2020-9290
Install updates from vendor's website.
Fortinet FortiClient for Windows - update to 6.2.4