CVE-2022-29402 Auth bypass in n/a

Medium 6.8 Published Updated

Attackers with physical access can bypass authentication on the UART console to execute commands as root on TP-Link routers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2022-29402?

CVE-2022-29402 is a medium-severity authentication bypass vulnerability in n/a, published on 25 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.

Weakness: CWE-306

Which versions are affected by CVE-2022-29402?

It affects 1 product.

Products include Tp-Link Tl-Wr840n Firmware.

How do I fix CVE-2022-29402?

No fix has been published for CVE-2022-29402 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2022-29402 being exploited?

There is no known exploitation of CVE-2022-29402 in the wild and no public exploit code.

Sources

Also known as GHSA-qmfg-pfxw-q9rj.

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