CVE-2019-12789

Опубликовано: 17 июн. 2019

Источник: nvd

CVSS3: 6.8

CVSS2: 7.2

EPSS Низкий

Описание

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.

Ссылки

http://seclists.org/fulldisclosure/2019/Jun/10
Exploit
Mailing List
Third Party Advisory
https://www.actiontec.com/blog/
Third Party Advisory
http://seclists.org/fulldisclosure/2019/Jun/10
Exploit
Mailing List
Third Party Advisory
https://www.actiontec.com/blog/
Third Party Advisory

Уязвимые конфигурации

Конфигурация 1

Одновременно

cpe:2.3:o:actiontec:t2200h_firmware:t2200h-31.1238l.08:*:*:*:*:*:*:*

cpe:2.3:h:actiontec:t2200h:-:*:*:*:*:*:*:*

EPSS

Процентиль: 34%

0.00139

Низкий

6.8 Medium

CVSS3

7.2 High

CVSS2

Дефекты

NVD-CWE-noinfo

Связанные уязвимости

GHSA-c7v4-8hc9-h72r

github

больше 3 лет назад

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.