CVE-2020-7550 Memory corruption in IGSS Definition (Def.exe) version 14.0.0.20247 and prior

High 7.8 Published 19 Nov 2020 Updated 4 Aug 2024

Remote code execution is possible in IGSS Definition when a malicious configuration file is imported, affecting industrial control system operators.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2020-7550?

CVE-2020-7550 is a high-severity memory corruption vulnerability in IGSS Definition (Def.exe) version 14.0.0.20247 and prior, published on 19 Nov 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 and prior that could cause Remote Code Execution when malicious CGF (Configuration Group File) file is imported to IGSS Definition.

Weakness: CWE-119

Which versions are affected by CVE-2020-7550?

It affects 1 product.

Products include Schneider-Electric Interactive Graphical Scada System.

How do I fix CVE-2020-7550?

No fix has been published for CVE-2020-7550 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-7550 being exploited?

There is no known exploitation of CVE-2020-7550 in the wild and no public exploit code.

Sources

Also known as GHSA-3w6g-24mq-35j6.