CVE-2021-20776 Auth bypass in SCT-40CM01SR and AT-40CM01SR
Attackers can bypass authentication to execute arbitrary commands via telnet on A-Stage security cameras.
- 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-2021-20776?
CVE-2021-20776 is a critical authentication bypass vulnerability in A-Stage Inc. SCT-40CM01SR and AT-40CM01SR, published on 7 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper authentication vulnerability in SCT-40CM01SR and AT-40CM01SR allows an attacker to bypass access restriction and execute an arbitrary command via telnet.
Weakness: CWE-287
Which versions are affected by CVE-2021-20776?
It affects 2 products.
Products include A-Stage-Inc At-40cm01sr Firmware, A-Stage-Inc Sct-40cm01sr Firmware.
How do I fix CVE-2021-20776?
No fix has been published for CVE-2021-20776 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-2021-20776 being exploited?
There is no known exploitation of CVE-2021-20776 in the wild and no public exploit code.
Sources
Also known as GHSA-38wv-982m-4q6p.