Siklu TG Terragraph devices before approximately 2.1.1 have a hardcoded root password that has been revealed via a brute force attack on an MD5 hash. It can be used for debug login by an admin. NOTE: the vulnerability is not fixed by the 2.1.1 firmware; instead, it is fixed in newer hardware, which would typically be used with firmware 2.1.1 or later.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: