CVE-2021-27171 Auth bypass in n/a
Attackers can gain root access via telnet on FiberHome routers by exploiting CLI commands, bypassing authentication controls.
- 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-2021-27171?
CVE-2021-27171 is a critical authentication bypass vulnerability in n/a, published on 10 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered on FiberHome HG6245D devices through RP2613. It is possible to start a Linux telnetd as root on port 26/tcp by using the CLI interface commands of ddd and shell (or tshell).
Weakness: CWE-787
Which versions are affected by CVE-2021-27171?
It affects 1 product.
Products include Fiberhome Hg6245d Firmware.
How do I fix CVE-2021-27171?
No fix has been published for CVE-2021-27171 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-2021-27171 being exploited?
There is no known exploitation of CVE-2021-27171 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-j7hh-h4p5-vc2f.