Executive Summary

Informations
Name CVE-2019-12789 First vendor Publication 2019-06-17
Vendor Cve Last vendor Modification 2020-08-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.8
Base Score 6.8 Environmental Score 6.8
impact SubScore 5.9 Temporal Score 6.8
Exploitabality Sub Score 0.9
 
Attack Vector Physical Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12789

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1

Sources (Detail)

Source Url
MISC http://seclists.org/fulldisclosure/2019/Jun/10
https://www.actiontec.com/blog/

Alert History

If you want to see full details history, please login or register.
0
1
2
3
Date Informations
2020-09-03 01:25:16
  • Multiple Updates
2020-05-23 02:22:21
  • Multiple Updates
2019-06-21 05:19:10
  • Multiple Updates
2019-06-17 21:19:34
  • First insertion