CVE-2018-18999 Memory corruption in WebAccess/SCADA

High 7.3 Published 19 Dec 2018 Updated 5 Aug 2024

A buffer overflow in WebAccess/SCADA allows attackers to execute arbitrary code or cause denial of service via 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-2018-18999?

CVE-2018-18999 is a high-severity memory corruption vulnerability in WebAccess/SCADA, published on 19 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

WebAccess/SCADA, WebAccess/SCADA Version 8.3.2 installed on Windows 2008 R2 SP1. Lack of proper validation of user supplied input may allow an attacker to cause the overflow of a buffer on the stack.

Weakness: CWE-787, CWE-20

Which versions are affected by CVE-2018-18999?

It affects 1 product.

Products include Advantech Webaccess\/Scada.

How do I fix CVE-2018-18999?

No fix has been published for CVE-2018-18999 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-2018-18999 being exploited?

There is no known exploitation of CVE-2018-18999 in the wild and no public exploit code.

Sources

Also known as GHSA-q9q3-g4f5-x6g7.