The privilege escalation vulnerability in the Zyxel GS1900-8 firmware version V2.70(AAHH.3) and the GS1900-8HP firmware version V2.70(AAHI.3) could allow an authenticated, local attacker with administrator privileges to execute some system commands as 'root' on a vulnerable device via SSH.
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
During installation, installed file permissions are set to allow anyone to modify those files.