CVE-2021-20155 Hardcoded credentials in Trendnet AC2600 TEW-827DRU

Critical 9.8 Published 30 Dec 2021 Updated 3 Aug 2024

Attackers can decrypt configuration backups using a hardcoded password, exposing sensitive device settings and potentially allowing unauthorized modifications.

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-2021-20155?

CVE-2021-20155 is a critical 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 makes use of hardcoded credentials. It is possible to backup and restore device configurations via the management web interface. These devices are encrypted using a hardcoded password of "12345678".

Weakness: CWE-798

Which versions are affected by CVE-2021-20155?

It affects 1 product.

Products include Trendnet Tew-827dru Firmware.

How do I fix CVE-2021-20155?

No fix has been published for CVE-2021-20155 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-20155 being exploited?

There is no known exploitation of CVE-2021-20155 in the wild and no public exploit code.

Sources

Also known as GHSA-cx29-cqmj-72f7.