CVE-2022-40621 WAVLINK Quantum D4G (WN531G3) Pass-The-Hash
Attackers can capture hashed passwords via HTTP and perform pass-the-hash attacks to gain unauthorized access to WAVLINK routers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-40621?
CVE-2022-40621 is a high-severity authentication bypass vulnerability in WAVLINK WN531G3, published on 13 Sep 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Because the WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 and earlier communicates over HTTP and not HTTPS, and because the hashing mechanism does not rely on a server-supplied key, it is possible for an attacker with sufficient network access to capture the hashed password of a logged on user and use it in a classic Pass-the-Hash style attack.
Weakness: CWE-294
Which versions are affected by CVE-2022-40621?
It affects 1 product.
Products include Wavlink Wn531g3 Firmware.
How do I fix CVE-2022-40621?
No fix has been published for CVE-2022-40621 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-2022-40621 being exploited?
There is no known exploitation of CVE-2022-40621 in the wild and no public exploit code.
Other vulnerabilities in WAVLINK WN531G3
Sources
Also known as GHSA-8mh6-982p-25hv.