CVE-2022-4098 Wiesemann & Theis: Multiple products prone to missing authentication through spoofing
An attacker in the same subnet can bypass authentication via IP spoofing to modify settings and take over Wiesemann & Theis Com-Server devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-4098?
CVE-2022-4098 is a high-severity authentication bypass vulnerability in Wiesemann & Theis Com-Server ++, published on 13 Dec 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Multiple Wiesemann&Theis products of the ComServer Series are prone to an authentication bypass through IP spoofing. After a user logged in to the WBM of the Com-Server an unauthenticated attacker in the same subnet can obtain the session ID and through IP spoofing change arbitrary settings by crafting modified HTTP Get requests. This may result in a complete takeover of the device.
Weakness: CWE-290
Which versions are affected by CVE-2022-4098?
It affects 16 products.
Products include Wut Com-Server 20ma Firmware, Wut Com-Server \+\+ Firmware, Wut Com-Server Highspeed 100basefx Firmware, Wut Com-Server Highspeed 100baselx Firmware, Wut Com-Server Highspeed 19\" 1port Firmware, Wut Com-Server Highspeed 19\" 4port Firmware and 10 more.
How do I fix CVE-2022-4098?
No fix has been published for CVE-2022-4098 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2022-4098 being exploited?
There is no known exploitation of CVE-2022-4098 in the wild and no public exploit code.
Sources
Also known as GHSA-9w34-3vc7-7786.