Vulnerabilities > CVE-2019-12789 - Unspecified vulnerability in Actiontec T2200H Firmware T2200H31.1238L.08
Attack vector
PHYSICAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH low complexity
actiontec
Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 1 | |
| Hardware | 1 |
Packetstorm
| data source | https://packetstormsecurity.com/files/download/153271/actiontect2200h-escalate.txt |
| id | PACKETSTORM:153271 |
| last seen | 2019-06-17 |
| published | 2019-06-12 |
| reporter | Andrew Klaus |
| source | https://packetstormsecurity.com/files/153271/Telus-Actiontec-T2200H-Local-Privilege-Escalation.html |
| title | Telus Actiontec T2200H Local Privilege Escalation |