Re: Grandstream VoIP phone: SSH key backdoor and multiple vulnerabilities leading to RCE as root (David Jorm

[Jeffrey Walton <noloader () gmail com>]

> A final issue I've reported to them in the past that's not resolved is the SSH host key being shared across all 
> phones of the same firmware version.
>
> The authenticity of host '10.150.117.57 (10.150.117.57)' can't be established.
> RSA key fingerprint is 7f:83:e8:5c:0b:fb:d1:47:c7:f1:33:60:b1:28:b9:f9.
>
> The authenticity of host '10.150.117.65 (10.150.117.65)' can't be established.
> RSA key fingerprint is 7f:83:e8:5c:0b:fb:d1:47:c7:f1:33:60:b1:28:b9:f9.

This may (or may not) be a vulnerability.

If they allow you to shut down the port so that no one can connect
unless authorized by the owner, then its probably not a vulnerability.
But its still a poor choice for security engineering.

Do you know if the port can be closed?

_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/