CVE-2019-8451 Server-side request forgery in Jira

Medium 6.5 Published Updated

Remote attackers can access internal network resources via SSRF in Jira's makeRequest servlet due to a whitelist logic bug.

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-2019-8451?

CVE-2019-8451 is a medium-severity server-side request forgery vulnerability in Atlassian Jira Server, published on 11 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The /plugins/servlet/gadgets/makeRequest resource in Jira before version 8.4.0 allows remote attackers to access the content of internal network resources via a Server Side Request Forgery (SSRF) vulnerability due to a logic bug in the JiraWhitelist class.

Weakness: CWE-918

Which versions are affected by CVE-2019-8451?

It affects 1 product.

Products include Atlassian Jira Server.

How do I fix CVE-2019-8451?

No fix has been published for CVE-2019-8451 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2019-8451 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-8451 exists.

Public exploit code: 1 Nuclei template and 5 proofs of concept on GitHub.

All Atlassian Jira Server vulnerabilities

Sources

Also known as GHSA-hp98-w9mh-2g6q.

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