CVE-2021-20150 Auth bypass in Trendnet AC2600 TEW-827DRU

Medium 5.3 Published 30 Dec 2021 Updated 3 Aug 2024

Attackers can bypass authentication and view admin information by forcing a redirect from the setup wizard on Trendnet routers.

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-2021-20150?

CVE-2021-20150 is a medium-severity authentication bypass 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 improperly discloses information via redirection from the setup wizard. Authentication can be bypassed and a user may view information as Admin by manually browsing to the setup wizard and forcing it to redirect to the desired page.

Weakness: CWE-306

Which versions are affected by CVE-2021-20150?

It affects 1 product.

Products include Trendnet Tew-827dru Firmware.

How do I fix CVE-2021-20150?

No fix has been published for CVE-2021-20150 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-2021-20150 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-20150 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-6wmh-r824-376w.