Mitrastar GPT-2741GNAC-N2 devices are provided with access through ssh into a restricted default shell.The command "deviceinfo show file" is supposed to be used from restricted shell to show files and directories. By providing " /bin/sh" (quotes included) to the argument of this command will drop a root shell.

A vulnerability, which was classified as critical, was found in MitraStar GPT-2541GNAC BR_g5.6_1.11(WVK.0)b26. Affected is an unknown function of the file /cgi-bin/settings-firewall.cgi of the component Firewall Settings Page. The manipulation of the argument SrcInterface leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. We tried to contact the vendor early about the disclosure but the official mail address was not working properly.

A command injection vulnerability was found in the ping functionality of the MitraStar GPT-2741GNAC router (firmware version AR_g5.8_110WVN0b7_2). The vulnerability allows an authenticated user to execute arbitrary OS commands by sending specially crafted input to the router via the ping function.

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