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CVE-2019-12789

Published: Jun 17, 2019Updated: Nov 21, 2024 Sources: CVE List NVDNVD-CWE-noinfo
6.8MEDIUM
NVD MITRE
EPSS Score
0.6%
Top 56.1%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:PAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:PAttack Vector
Physical
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

NVD-CWE-noinfo

Affected Products

actiontec
commercialaka wcb6200q firmware, web6000q firmware, wcb6200q
t2200h firmwareEmbedded
Hardware Firmware / network-adapter
and 1 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
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References

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

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