CVE-2021-43946 Missing authorization in Jira Data Center

Medium 6.5 Published Updated

Authenticated attackers can add administrator groups to filter subscriptions, leading to privilege escalation and unauthorized data modification in 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-2021-43946?

CVE-2021-43946 is a medium-severity missing authorization vulnerability in Atlassian Jira Data Center, published on 5 Jan 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Affected versions of Atlassian Jira Server and Data Center allow authenticated remote attackers to add administrator groups to filter subscriptions via a Broken Access Control vulnerability in the /secure/EditSubscription.jspa endpoint. The affected versions are before version 8.13.21, and from version 8.14.0 before 8.20.9.

Which versions are affected by CVE-2021-43946?

It affects 2 products.

Products include Atlassian Jira Data Center, Atlassian Jira Server.

How do I fix CVE-2021-43946?

No fix has been published for CVE-2021-43946 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-2021-43946 being exploited?

There is no known exploitation of CVE-2021-43946 in the wild and no public exploit code.

All Atlassian Jira Data Center vulnerabilities

Sources

Also known as GHSA-g68c-mch5-w4f4.

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