CVE-2020-35566 Local file inclusion vulnerability in products of MB connect line and Helmholz

Medium 5.3 Published 16 Feb 2021 Updated 16 Sep 2024

Attackers can read arbitrary JSON files via Local File Inclusion in MB connect line and Helmholz industrial connectivity 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-2020-35566?

CVE-2020-35566 is a medium-severity path traversal vulnerability in n/a, published on 16 Feb 2021. An attacker can exploit it over the internet without logging in, 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. An attacker can read arbitrary JSON files via Local File Inclusion.

Weakness: CWE-706

Which versions are affected by CVE-2020-35566?

It affects 4 products.

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

How do I fix CVE-2020-35566?

No fix has been published for CVE-2020-35566 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-35566 being exploited?

There is no known exploitation of CVE-2020-35566 in the wild and no public exploit code.

Sources

Also known as GHSA-hf2f-4243-6465.