CVE-2021-34600 Telenot complex: Insecure AES Key Generation
Weak AES key generation in Telenot CompasX allows attackers to predict NFC authorization keys, bypassing local access controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-34600?
CVE-2021-34600 is a medium-severity vulnerability in Telenot Electronic GmbH CompasX, published on 20 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Telenot CompasX versions prior to 32.0 use a weak seed for random number generation leading to predictable AES keys used in the NFC tags used for local authorization of users. This may lead to total loss of trustworthiness of the installation.
Weakness: CWE-335
Which versions are affected by CVE-2021-34600?
It affects 1 product.
Products include Telenot Compasx.
How do I fix CVE-2021-34600?
No fix has been published for CVE-2021-34600 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-34600 being exploited?
There is no known exploitation of CVE-2021-34600 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-5f54-x7j7-36p3.