CVE-2021-43959 Server-side request forgery in Jira Service Management Data Center

Medium 5.7 Published 26 Jul 2022 Updated 3 Oct 2024

Authenticated attackers can exploit SSRF in CSV import to access internal network resources and cloud metadata credentials.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-43959?

CVE-2021-43959 is a medium-severity server-side request forgery vulnerability in Atlassian Jira Service Management Data Center, published on 26 Jul 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Affected versions of Atlassian Jira Service Management Server and Data Center allow authenticated remote attackers to access the content of internal network resources via a Server-Side Request Forgery (SSRF) vulnerability in the CSV importing feature of JSM Insight. When running in an environment like Amazon EC2, this flaw may be used to access to a metadata resource that provides access credentials and other potentially confidential information. The affected versions are before version 4.13.20, from version 4.14.0 before 4.20.8, and from version 4.21.0 before 4.22.2.

Weakness: CWE-918

Which versions are affected by CVE-2021-43959?

It affects 2 products.

Products include Atlassian Jira Service Desk, Atlassian Jira Service Management.

How do I fix CVE-2021-43959?

No fix has been published for CVE-2021-43959 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-2021-43959 being exploited?

There is no known exploitation of CVE-2021-43959 in the wild and no public exploit code.

Sources

Also known as GHSA-5rqp-fx48-4mvw.