CVE-2021-43958 Security feature bypass in Crucible

Critical 9.8 Published Updated

Remote attackers can brute force user credentials by bypassing CAPTCHA and lockout mechanisms in Atlassian Fisheye and Crucible.

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

What is CVE-2021-43958?

CVE-2021-43958 is a critical vulnerability in Atlassian Crucible, published on 16 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Various rest resources in Fisheye and Crucible before version 4.8.9 allowed remote attackers to brute force user login credentials as rest resources did not check if users were beyond their max failed login limits and therefore required solving a CAPTCHA in addition to providing user credentials for authentication via a improper restriction of excess authentication attempts vulnerability.

Weakness: CWE-307

Which versions are affected by CVE-2021-43958?

It affects 2 products.

Products include Atlassian Crucible, Atlassian Fisheye.

How do I fix CVE-2021-43958?

No fix has been published for CVE-2021-43958 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-43958 being exploited?

There is no known exploitation of CVE-2021-43958 in the wild and no public exploit code.

All Atlassian Crucible vulnerabilities

Sources

Also known as GHSA-j832-43w3-m333.

Is CVE-2021-43958 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free