CVE-2020-12527 Improper Access Validation in products of MB connect line and Helmholz

Medium 6.5 Published 2 Mar 2021 Updated 16 Sep 2024

Logged-in users can shut down or reboot devices without proper permissions, causing denial of service in MB connect line and Helmholz products.

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

What is CVE-2020-12527?

CVE-2020-12527 is a medium-severity missing authorization vulnerability in Helmholz mbCONNECT24, published on 2 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2. Improper access validation allows a logged in user to shutdown or reboot devices in his account without having corresponding permissions.

Weakness: CWE-269

Which versions are affected by CVE-2020-12527?

It affects 4 products.

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

How do I fix CVE-2020-12527?

No fix has been published for CVE-2020-12527 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-2020-12527 being exploited?

There is no known exploitation of CVE-2020-12527 in the wild and no public exploit code.

Sources

Also known as GHSA-vv92-932q-3jmg.