CVE-2021-28494 Auth bypass in Metamako Operating System
Unprivileged users can bypass authentication on the Arista Metamako OS Web UI, gaining unauthorized access to the network device.
- 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-2021-28494?
CVE-2021-28494 is a critical authentication bypass vulnerability in Arista Metamako Operating System, published on 9 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, under certain conditions, authentication is bypassed by unprivileged users who are accessing the Web UI. This issue affects: Arista Metamako Operating System MOS-0.34.0 and prior releases
Weakness: CWE-287
Which versions are affected by CVE-2021-28494?
It affects 1 product.
Products include Arista Metamako Operating System.
How do I fix CVE-2021-28494?
No fix has been published for CVE-2021-28494 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-2021-28494 being exploited?
There is no known exploitation of CVE-2021-28494 in the wild and no public exploit code.
Other vulnerabilities in Arista Metamako Operating System
- CVE-2021-28498 Hardcoded credentials in Metamako Operating System
- CVE-2021-28493 Auth bypass in Metamako Operating System
- CVE-2021-28495 Auth bypass in Metamako Operating System
- CVE-2021-28499 Information disclosure in Metamako Operating System
- CVE-2021-28497 Auth bypass in Metamako Operating System
Sources
Also known as GHSA-p97q-qr3w-x236.