CVE-2021-30190 Missing authorization in n/a

Critical 9.8 Published 25 May 2021 Updated 3 Aug 2024

An attacker can bypass access controls on the CODESYS V2 Web-Server to gain unauthorized access to the system.

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-2021-30190?

CVE-2021-30190 is a critical missing authorization vulnerability in n/a, published on 25 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

CODESYS V2 Web-Server before 1.1.9.20 has Improper Access Control.

Weakness: CWE-306

Which versions are affected by CVE-2021-30190?

It affects 28 products.

Products include Codesys V2 Web Server, Wago 750-8202 Firmware, Wago 750-8203 Firmware, Wago 750-8204 Firmware, Wago 750-8206 Firmware, Wago 750-8207 Firmware and 22 more.

How do I fix CVE-2021-30190?

No fix has been published for CVE-2021-30190 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-2021-30190 being exploited?

There is no known exploitation of CVE-2021-30190 in the wild and no public exploit code.

Sources

Also known as GHSA-grjg-25gc-44cm.