CVE-2020-12002 Memory corruption in Advantech WebAccess Node

Critical 9.8 Published Updated

Remote attackers can execute arbitrary code via stack-based buffer overflows in Advantech WebAccess Node due to improper input validation.

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-2020-12002?

CVE-2020-12002 is a critical memory corruption vulnerability in Advantech Webaccess, published on 8 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple stack-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2020-12002?

It affects 1 product.

Products include Advantech Webaccess.

How do I fix CVE-2020-12002?

No fix has been published for CVE-2020-12002 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-2020-12002 being exploited?

There is no known exploitation of CVE-2020-12002 in the wild and no public exploit code.

All Advantech Webaccess vulnerabilities

Sources

Also known as GHSA-6g8h-c25m-ph57.

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