CVE-2021-45841 Auth bypass in n/a
Attackers can bypass authentication on Terramaster NAS devices by forging session cookies using known MAC addresses and password hashes, allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-45841?
CVE-2021-45841 is a high-severity authentication bypass vulnerability in n/a, published on 25 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517), an attacker can self-sign session cookies by knowing the target's MAC address and the user's password hash. Guest users (disabled by default) can be abused using a null/empty hash and allow an unauthenticated attacker to login as guest.
Which versions are affected by CVE-2021-45841?
It affects 1 product.
Products include Terra-Master Tos.
How do I fix CVE-2021-45841?
No fix has been published for CVE-2021-45841 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-2021-45841 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45841 exists.
Public exploit code: 1 Metasploit module.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gmc4-3pqc-993q.