CVE-2020-6656 File parsing Type Confusion Remote code execution vulerability

Medium 5.8 Published Updated

Attackers can execute arbitrary code or crash the application by tricking users into opening a malformed E70 file in Eaton easySoft.

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-2020-6656?

CVE-2020-6656 is a medium-severity memory corruption vulnerability in Eaton easySoft Software, published on 7 Jan 2021. 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

Eaton's easySoft software v7.xx prior to v7.22 are susceptible to file parsing type confusion remote code execution vulnerability. A malicious entity can execute a malicious code or make the application crash by tricking user upload a malformed .E70 file in the application. The vulnerability arises due to improper validation of user data supplied through E70 file which is causing Type Confusion.

Weakness: CWE-843, CWE-20

Which versions are affected by CVE-2020-6656?

It affects 1 product.

Products include Eaton Easysoft.

How do I fix CVE-2020-6656?

No fix has been published for CVE-2020-6656 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-2020-6656 being exploited?

There is no known exploitation of CVE-2020-6656 in the wild and no public exploit code.

Sources

Also known as GHSA-3vf9-hrcp-mj3p.

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