CVE-2019-6529 Denial of service in PR100088 Modbus gateway

Medium 4.9 Published 7 Jan 2020 Updated 4 Aug 2024

An attacker can crash the PR100088 Modbus gateway by sending a specially crafted FTP request, disrupting industrial operations.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-6529?

CVE-2019-6529 is a medium-severity denial of service vulnerability in PR100088 Modbus gateway, published on 7 Jan 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

An attacker could specially craft an FTP request that could crash the PR100088 Modbus gateway versions prior to release R02 (or Software Version 1.1.13166).

Weakness: CWE-20

Which versions are affected by CVE-2019-6529?

It affects 1 product.

Products include Kunbus Pr100088 Modbus Gateway Firmware.

How do I fix CVE-2019-6529?

No fix has been published for CVE-2019-6529 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-6529 being exploited?

There is no known exploitation of CVE-2019-6529 in the wild and no public exploit code.

Sources

Also known as GHSA-x2mw-32fv-cr72.