Improper Authentication Limitations in Atlassian Fisheye and Crucible
CVE-2021-43958

9.8CRITICAL

Key Information:

Vendor

Atlassian
Status
Fisheye
Crucible
Vendor
CVE Published:
16 March 2022

What is CVE-2021-43958?

In versions prior to 4.8.9 of Atlassian Fisheye and Crucible, various REST resources did not enforce limits on failed login attempts. This flaw allows remote attackers to exploit the system by repeatedly attempting to guess user credentials without hitting a maximum threshold. As a result, attackers could bypass expected security measures, such as CAPTCHA challenges that are intended to prevent automated access. Organizations using these applications are advised to update to the latest versions to mitigate the risk of unauthorized access.

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Deploy the Patch

Affected Version(s)

Crucible < 4.8.9

Fisheye < 4.8.9

References

https://jira.atlassian.com/browse/FE-7387
x_refsource_MISC
https://jira.atlassian.com/browse/CRUC-8523
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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