CVE-2019-6543 Missing authorization in AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update

Critical 9.8 Published 13 Feb 2019 Updated 16 Sep 2024

Attackers can execute arbitrary code with runtime privileges due to missing authentication, compromising the machine.

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-2019-6543?

CVE-2019-6543 is a critical missing authorization vulnerability in ICS-CERT AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update, published on 13 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

AVEVA Software, LLC InduSoft Web Studio prior to Version 8.1 SP3 and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update. Code is executed under the program runtime privileges, which could lead to the compromise of the machine.

Weakness: CWE-306

Which versions are affected by CVE-2019-6543?

It affects 2 products.

Products include Aveva Indusoft Web Studio, Aveva Intouch Machine Edition 2014.

How do I fix CVE-2019-6543?

No fix has been published for CVE-2019-6543 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-6543 being exploited?

There is no known exploitation of CVE-2019-6543 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-pr9x-32vv-5c37.