CVE-2019-20899 Denial of service in Jira Server
Remote attackers can make Jira unresponsive by sending repeated requests to a specific Gadget API endpoint, requiring an upgrade to mitigate.
- 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-2019-20899?
CVE-2019-20899 is a medium-severity denial of service vulnerability in Atlassian Jira, published on 13 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Gadget API in Atlassian Jira Server and Data Center in affected versions allows remote attackers to make Jira unresponsive via repeated requests to a certain endpoint in the Gadget API. The affected versions are before version 8.5.4, and from version 8.6.0 before 8.6.1.
Which versions are affected by CVE-2019-20899?
It affects 4 products.
Products include Atlassian Jira, Atlassian Jira Data Center, Atlassian Jira Server, Atlassian Jira Software Data Center.
How do I fix CVE-2019-20899?
No fix has been published for CVE-2019-20899 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-2019-20899 being exploited?
There is no known exploitation of CVE-2019-20899 in the wild and no public exploit code.
Other vulnerabilities in Atlassian Jira
Sources
Also known as GHSA-6p5p-qf85-v9pw.