CVE-2020-4766 Denial of service in MQ Internet Pass-Thru
Remote attackers can cause denial of service in IBM MQ Internet Pass-Thru by sending malformed data requests that exhaust system resources.
- 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-2020-4766?
CVE-2020-4766 is a medium-severity denial of service vulnerability in IBM MQ Internet Pass-Thru, published on 22 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM MQ Internet Pass-Thru 2.1 and 9.2 could allow a remote user to cause a denial of service by sending malformed MQ data requests which would consume all available resources. IBM X-Force ID: 188093.
Weakness: CWE-400
Which versions are affected by CVE-2020-4766?
It affects 1 product.
Products include Ibm Mq Internet Pass-Thru.
How do I fix CVE-2020-4766?
No fix has been published for CVE-2020-4766 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-2020-4766 being exploited?
There is no known exploitation of CVE-2020-4766 in the wild and no public exploit code.
Other vulnerabilities in IBM MQ Internet Pass-Thru
Sources
Also known as GHSA-4mx5-h7cq-whf6.