CVE-2020-12019 Memory corruption in WebAccess Node

Critical 9.8 Published Updated

A stack-based buffer overflow in WebAccess Node allows remote attackers to execute arbitrary code, posing a critical risk to industrial control systems.

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-2020-12019?

CVE-2020-12019 is a critical memory corruption vulnerability in Advantech Webaccess, published on 15 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

WebAccess Node Version 8.4.4 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2020-12019?

It affects 1 product.

Products include Advantech Webaccess.

How do I fix CVE-2020-12019?

No fix has been published for CVE-2020-12019 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-2020-12019 being exploited?

There is no known exploitation of CVE-2020-12019 in the wild and no public exploit code.

All Advantech Webaccess vulnerabilities

Sources

Also known as GHSA-fx8h-mcx2-mhjf.

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