CVE-2021-20152 Missing authorization in Trendnet AC2600 TEW-827DRU

Medium 6.5 Published 30 Dec 2021 Updated 3 Aug 2024

Attackers can modify settings and files via the Bittorrent web client if the feature is enabled, due to missing authentication.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-20152?

CVE-2021-20152 is a medium-severity missing authorization vulnerability in Trendnet AC2600 TEW-827DRU, published on 30 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Trendnet AC2600 TEW-827DRU version 2.08B01 lacks proper authentication to the bittorrent functionality. If enabled, anyone is able to visit and modify settings and files via the Bittorent web client by visiting: http://192.168.10.1:9091/transmission/web/

Weakness: CWE-306

Which versions are affected by CVE-2021-20152?

It affects 1 product.

Products include Trendnet Tew-827dru Firmware.

How do I fix CVE-2021-20152?

No fix has been published for CVE-2021-20152 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-2021-20152 being exploited?

There is no known exploitation of CVE-2021-20152 in the wild and no public exploit code.

Sources

Also known as GHSA-62w4-6v3m-2j3j.