CVE-2019-20106 Missing authorization in Jira Server and Data Center

Medium 4.3 Published Updated

Remote attackers can add comments to tickets without proper permissions due to broken access control in Atlassian Jira.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-20106?

CVE-2019-20106 is a medium-severity missing authorization vulnerability in Atlassian Jira, published on 6 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Comment properties in Atlassian Jira Server and Data Center before version 7.13.12, from 8.0.0 before version 8.5.4, and 8.6.0 before version 8.6.1 allows remote attackers to make comments on a ticket to which they do not have commenting permissions via a broken access control bug.

Weakness: CWE-276

Which versions are affected by CVE-2019-20106?

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-2019-20106?

No fix has been published for CVE-2019-20106 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-20106 being exploited?

There is no known exploitation of CVE-2019-20106 in the wild and no public exploit code.

All Atlassian Jira vulnerabilities

Sources

Also known as GHSA-2cw7-vx4f-3wmm.

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