An issue was discovered on Actiontec T2200H T2200H-31.128L.08 devices, as distributed by Telus. 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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2019-06-17T16:19:57
Updated: 2024-08-04T23:32:55.167Z
Reserved: 2019-06-10T00:00:00
Link: CVE-2019-12789
Vulnrichment
No data.
NVD
Status : Modified
Published: 2019-06-17T17:15:11.193
Modified: 2024-11-21T04:23:35.060
Link: CVE-2019-12789
Redhat
No data.