An issue was discovered on the ENTTEC Datagate MK2, Storm 24, Pixelator, and E-Streamer MK2 with firmware 70044_update_05032019-482. They include a hard-coded SSH backdoor for remote SSH and SCP access as the root user. A command in the relocate and relocate_revB scripts copies the hardcoded key to the root user's authorized_keys file, enabling anyone with the associated private key to gain remote root access to all affected products.

An issue was discovered on the ENTTEC Datagate MK2, Storm 24, Pixelator, and E-Streamer MK2 with firmware 70044_update_05032019-482. They allow high-privileged root access by www-data via sudo without requiring appropriate access control. (Furthermore, the user account that controls the web application service is granted full access to run any system commands with elevated privilege, without the need for password authentication. Should vulnerabilities be identified and exploited within the web application, it may be possible for a threat actor to create or run high-privileged binaries or executables that are available within the operating system of the device.)

An issue was discovered on the ENTTEC Datagate MK2, Storm 24, Pixelator, and E-Streamer MK2 with firmware 70044_update_05032019-482. They replace secure and protected directory permissions (set as default by the underlying operating system) with highly insecure read, write, and execute directory permissions for all users. By default, /usr/local and all of its subdirectories should have permissions set to only allow non-privileged users to read and execute from the tree structure, and to deny users from creating or editing files in this location. The ENTTEC firmware startup script permits all users to read, write, and execute (rwxrwxrwx) from the /usr, /usr/local, /usr/local/dmxis, and /usr/local/bin/ directories.

A number of stored XSS vulnerabilities have been identified in the web configuration feature in ENTTEC Datagate Mk2 70044_update_05032019-482 that could allow an unauthenticated threat actor to inject malicious code directly into the application. This affects, for example, the Profile Description field in JSON data to the Profile Editor.

ENTTEC Datagate MK2, Storm 24, Pixelator all firmware versions prior to (70044,70050,70060)_update_05032019-482 allows an unauthenticated user to initiate a remote reboot, which may be used to cause a denial of service condition.