CVE-2021-43954 Server-side request forgery in Crucible

What is CVE-2021-43954?

CVE-2021-43954 is a medium-severity server-side request forgery vulnerability in Atlassian Crucible, published on 14 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The DefaultRepositoryAdminService class in Fisheye and Crucible before version 4.8.9 allowed remote attackers, who have 'can add repository permission', to enumerate the existence of internal network and filesystem resources via a Server-Side Request Forgery (SSRF) vulnerability.

Weakness: CWE-918

Which versions are affected by CVE-2021-43954?

It affects 2 products.

Products include Atlassian Crucible, Atlassian Fisheye.

How do I fix CVE-2021-43954?

No fix has been published for CVE-2021-43954 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-2021-43954 being exploited?

There is no known exploitation of CVE-2021-43954 in the wild and no public exploit code.

Other vulnerabilities in Atlassian Crucible

• CVE-2021-43958 Security feature bypass in Crucible Critical 9.8
• CVE-2017-16861 Code injection in Fisheye and Crucible Critical 9.8
• CVE-2017-14591 Command injection in Fisheye and Crucible Critical 9.0
• CVE-2020-4018 Cross-site request forgery in Crucible High 8.8
• CVE-2018-13399 Privilege escalation in Fisheye and Crucible High 7.8

All Atlassian Crucible vulnerabilities

Sources

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

Also known as GHSA-w6c2-26pj-hpq6.