Hacker @kingcope discovered critical vulnerability in Tectia SSH Server. Exploit working on SSH-2.0-184.108.40.206 SSH Tectia Server (Latest available version from http://www.tectia.com) that allow attacker to bypass Authentication remotely.
Description : An attacker in the possession of a valid username of an SSH Tectia installation running on UNIX (verified on AIX/Linux) can login without a password. The bug is in the “SSH USERAUTH CHANGE REQUEST” routines which are there to allow a user to change their password. A bug in the code allows an attacker to login without a password by forcing a password change request prior to authentication.