CVE-2022-22520 User enumeration vulnerability in MB connect line and Helmholz products

Medium 5.3 Published 14 Sep 2022 Updated 17 Sep 2024

Remote attackers can enumerate valid users via the web service, exposing user accounts in MB connect line and Helmholz industrial IoT products.

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-2022-22520?

CVE-2022-22520 is a medium-severity vulnerability in Helmholz mbCONNECT24, published on 14 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A remote, unauthenticated attacker can enumerate valid users by sending specific requests to the webservice of MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2.

Weakness: CWE-204

Which versions are affected by CVE-2022-22520?

It affects 4 products.

Products include Helmholz Myrex24, Helmholz Myrex24.virtual, Mbconnectline Mbconnect24, Mbconnectline Mymbconnect24.

How do I fix CVE-2022-22520?

No fix has been published for CVE-2022-22520 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-22520 being exploited?

There is no known exploitation of CVE-2022-22520 in the wild and no public exploit code.

Sources

Also known as GHSA-mwvc-vgg7-3665.