CVE-2019-4620 Security feature bypass in MQ Appliance

High 8.4 Published 28 Jan 2020 Updated 17 Sep 2024

A local attacker can bypass security restrictions on IBM MQ Appliance due to improper validation of environment variables.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-4620?

CVE-2019-4620 is a high-severity vulnerability in IBM MQ Appliance, published on 28 Jan 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM MQ Appliance 8.0 and 9.0 LTS could allow a local attacker to bypass security restrictions caused by improper validation of environment variables. IBM X-Force ID: 168863.

Weakness: CWE-20

Which versions are affected by CVE-2019-4620?

It affects 1 product.

Products include Ibm Mq Appliance.

How do I fix CVE-2019-4620?

No fix has been published for CVE-2019-4620 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-4620 being exploited?

There is no known exploitation of CVE-2019-4620 in the wild and no public exploit code.

Sources

Also known as GHSA-qwqq-r334-mqgx.