CVE-2021-34574 Password policy evasion in products of MB connect line and Helmholz

Medium 4.3 Published 2 Aug 2021 Updated 16 Sep 2024

Authenticated attackers can bypass password policy restrictions by intercepting and modifying password change requests 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-2021-34574?

CVE-2021-34574 is a medium-severity vulnerability in Helmholz mbCONNECT24, published on 2 Aug 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In MB connect line mymbCONNECT24, mbCONNECT24 and Helmholz myREX24 and myREX24.virtual in all versions through v2.11.2 an authenticated attacker can change the password of his account into a new password that violates the password policy by intercepting and modifying the request that is send to the server.

Weakness: CWE-669

Which versions are affected by CVE-2021-34574?

It affects 4 products.

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

How do I fix CVE-2021-34574?

No fix has been published for CVE-2021-34574 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-34574 being exploited?

There is no known exploitation of CVE-2021-34574 in the wild and no public exploit code.

Sources

Also known as GHSA-c4j8-5xv4-xcxh.