CVE-2016-8377 Memory corruption in Fatek Automation PLC WinProladder 3.11 Build 14701

High 8.0 Published Updated

A stack-based buffer overflow in Fatek WinProladder allows remote code execution when connecting to a malicious server.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2016-8377?

CVE-2016-8377 is a high-severity memory corruption vulnerability in Fatek Automation PLC WinProladder 3.11 Build 14701, published on 13 Feb 2017. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

An issue was discovered in Fatek Automation PLC WinProladder Version 3.11 Build 14701. A stack-based buffer overflow vulnerability exists when the software application connects to a malicious server, resulting in a stack buffer overflow. This causes an exploitable Structured Exception Handler (SEH) overwrite condition that may allow remote code execution.

Weakness: CWE-119

Which versions are affected by CVE-2016-8377?

It affects 1 product.

Products include Fatek Plc Winproladder Firmware.

How do I fix CVE-2016-8377?

No fix has been published for CVE-2016-8377 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-2016-8377 being exploited?

There is no known exploitation of CVE-2016-8377 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-pjr3-5p2r-73h6.

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