CVE-2021-20676 Auth bypass in M-System DL8 series
Remote authenticated attackers can bypass access restrictions to perform prohibited operations on M-System DL8 series devices.
- 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-2021-20676?
CVE-2021-20676 is a medium-severity authentication bypass vulnerability in M-System DL8 series, published on 18 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
M-System DL8 series (type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions prior to Ver3.0, type C (DL8-C) versions prior to Ver3.0, type D (DL8-D) versions prior to Ver3.0, and type E (DL8-E) versions prior to Ver3.0) allows remote authenticated attackers to bypass access restriction and conduct prohibited operations via unspecified vectors.
Weakness: CWE-863
Which versions are affected by CVE-2021-20676?
It affects 5 products.
Products include M-System Dl8-a Firmware, M-System Dl8-B Firmware, M-System Dl8-C Firmware, M-System Dl8-D Firmware, M-System Dl8-E Firmware.
How do I fix CVE-2021-20676?
No fix has been published for CVE-2021-20676 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-2021-20676 being exploited?
There is no known exploitation of CVE-2021-20676 in the wild and no public exploit code.
Other vulnerabilities in M-System DL8 series
Sources
Also known as GHSA-h3xv-65m3-mq7c.