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CVE-2017-16857

8.5 · HIGH

It is possible to bypass the bitbucket auto-unapprove plugin via minimal brute-force because it is relying on asynchronous events on the back-end.

Published Dec 5, 2017CWE-362EPSS 0.59%

Overview

CVE-2017-16857 is a high-severity vulnerability. It was published on December 5, 2017 and has a CVSS 3.0 base score of 8.5 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

It is possible to bypass the bitbucket auto-unapprove plugin via minimal brute-force because it is relying on asynchronous events on the back-end. This allows an attacker to merge any code into unsuspecting repositories. This affects all versions of the auto-unapprove plugin, however since the auto-unapprove plugin is not bundled with Bitbucket Server it does not affect any particular version of Bitbucket.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refjira.atlassian.com/browse/BSERV-10439Refjira.atlassian.com/browse/BSERV-10439

How CyberStrike helps

Frequently asked questions

What is CVE-2017-16857?

CVE-2017-16857 is a high-severity vulnerability. It was published on December 5, 2017 and has a CVSS 3.0 base score of 8.5 (HIGH).

How severe is CVE-2017-16857?

This vulnerability has a CVSS 3.0 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-16857?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-16857?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-16857 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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