CVE-2020-13552 Privilege escalation in Advantech

High 8.8 Published Updated

Local attackers can escalate privileges to SYSTEM by replacing binaries in the Advantech WebAccess/SCADA installation directory due to insecure file permissions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-13552?

CVE-2020-13552 is a high-severity vulnerability in Advantech, published on 17 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An exploitable local privilege elevation vulnerability exists in the file system permissions of Advantech WebAccess/SCADA 9.0.1 installation. In privilege escalation via multiple service executables in installation folder of WebAccess, an attacker can either replace binary or loaded modules to execute code with NT SYSTEM privilege.

Weakness: CWE-276

Which versions are affected by CVE-2020-13552?

It affects 1 product.

Products include Advantech Webaccess\/Scada.

How do I fix CVE-2020-13552?

No fix has been published for CVE-2020-13552 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-13552 being exploited?

There is no known exploitation of CVE-2020-13552 in the wild and no public exploit code.

Sources

Also known as GHSA-x6wj-ww64-ph44.

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