CVE-2019-20101 Missing authorization in Jira Data Center

What is CVE-2019-20101?

CVE-2019-20101 is a medium-severity missing authorization vulnerability in Atlassian Jira, published on 14 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view whitelist rules via a Broken Access Control vulnerability in the /rest/whitelist/<version>/check endpoint. The affected versions are before version 8.13.3, and from version 8.14.0 before 8.14.1.

Which versions are affected by CVE-2019-20101?

It affects 2 products.

Products include Atlassian Data Center, Atlassian Jira.

How do I fix CVE-2019-20101?

No fix has been published for CVE-2019-20101 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-2019-20101 being exploited?

There is no known exploitation of CVE-2019-20101 in the wild and no public exploit code.

Other vulnerabilities in Atlassian Jira

• CVE-2017-18113 Code injection in Jira Data Center High 8.8
• CVE-2021-41312 Auth bypass in Jira Data Center High 7.5
• CVE-2021-39123 Denial of service in Jira Data Center High 7.5
• CVE-2021-39113 Missing authorization in Jira Data Center High 7.5
• CVE-2021-43947 Code injection in Jira Data Center High 7.2

All Atlassian Jira vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-26xp-wjvm-542h.