CVE-2019-19143 Missing authorization in n/a

Medium 6.1 Published Updated

Unauthenticated attackers can replace firmware on TP-LINK TL-WR849N routers via a POST request, leading to full device compromise.

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

What is CVE-2019-19143?

CVE-2019-19143 is a medium-severity missing authorization vulnerability in n/a, published on 27 Jan 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

TP-LINK TL-WR849N 0.9.1 4.16 devices do not require authentication to replace the firmware via a POST request to the cgi/softup URI.

Weakness: CWE-306

Which versions are affected by CVE-2019-19143?

It affects 1 product.

Products include Tp-Link Tl-Wr849n Firmware.

How do I fix CVE-2019-19143?

No fix has been published for CVE-2019-19143 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-19143 being exploited?

There is no known exploitation of CVE-2019-19143 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-ph65-xpv9-v765.

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