CVE-2021-41028 Hardcoded credentials in Fortinet FortiClientEMS, FortiClientWindows, FortiClientLinux, FortiClientMac
An attacker can perform a man-in-the-middle attack on telemetry traffic due to hardcoded keys and improper certificate validation in FortiClient and EMS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-41028?
CVE-2021-41028 is a high-severity vulnerability in Fortinet Forticlient, published on 16 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2021-41028?
It affects 2 products.
Products include Fortinet Forticlient, Fortinet Forticlient Endpoint Management Server.
How do I fix CVE-2021-41028?
No fix has been published for CVE-2021-41028 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-41028 being exploited?
There is no known exploitation of CVE-2021-41028 in the wild and no public exploit code.
Other vulnerabilities in Fortinet Forticlient
- CVE-2019-17658 Privilege escalation in Fortinet FortiClientWindows
- CVE-2023-45590 Code injection in FortiClientLinux
- CVE-2017-14184 Information disclosure in FortiClient SSLVPN Client for Linux
- CVE-2016-8493 Privilege escalation in Fortinet FortiClient
- CVE-2020-15934 Privilege escalation in FortiClientLinux
Sources
Also known as GHSA-2p93-h9hw-wqjg.