Authentication bypass in Jira (CVE 2022 0540) vulnerability if JIRA is internal on the network only

[Robert Radu]

Regarding the recently announced critical security advisory for CVE-2022-0540 regarding Authentication bypass in JIRA Server, is this still a critical vulnerability if the JIRA instance is confined to the internal network only and is not accessible from the internet?

[Brian Roberts · Accepted solution]

That's a question only you and your org's security team (if you have one) can answer for sure. If you trust everyone with access to your internal network, then it may not be so critical for you because only people on your internal network would be able to exploit it.

[Filipi Lima]

Hi Robert,

On the FAQ, we have added an answer to that question as well:

• https://confluence.atlassian.com/kb/faq-for-cve-2022-0540-1123193843.html

My instance isn't exposed to the Internet. Is an upgrade still recommended?

Yes! While ensuring instances are not exposed to the public internet greatly reduces the attack surface, we always recommend upgrading when security fixes are available. We try to provide as much information as possible so that customers can determine the scope (e.g. affected products, and in this case, affected apps) and impact. It's ultimately up to each customer to consider this information when determining whether mitigating factors, like no external access to the instance, reduces the risk to their business enough to defer installing an upgrade.