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By attaching a UART adapter to the UART pins on the system board, an attacker can use a special key sequence (Ctrl-\\) to obtain a shell with root privileges. After gaining root access, the attacker can mount the filesystem read-write and make permanent modifications to the device including bricking of the device, disabling vendor management of the device, preventing automatic upgrades, and permanently installing malicious code on the device.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"12789","Ordinal":"2","NoteData":"2019-06-17","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"12789","Ordinal":"3","NoteData":"2019-06-17","Type":"Other","Title":"Modified"}]}}}