CVE-2021-42138 Weak cryptography in Safenet Authentication Service
Attackers can exploit weak entropy to decrypt and access stored user credentials on machines using SafeNet Agent for Windows Logon.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-42138?
CVE-2021-42138 is a high-severity vulnerability in Thales CPL Safenet Authentication Service, published on 20 Dec 2021. 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
A user of a machine protected by SafeNet Agent for Windows Logon may leverage weak entropy to access the encrypted credentials of any or all the users on that machine.
Weakness: CWE-331
Which versions are affected by CVE-2021-42138?
It affects 1 product.
Products include Thalesgroup Safenet Windows Logon Agent.
How do I fix CVE-2021-42138?
No fix has been published for CVE-2021-42138 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42138 being exploited?
There is no known exploitation of CVE-2021-42138 in the wild and no public exploit code.
Sources
Also known as GHSA-5c3c-76cf-7hhm.