Vulnerability Monitor

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CVE-2017-16857


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.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.5, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from atlassian organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2017-12-05T16:29:00.453

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 8.5 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

6.8

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-362

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application atlassian bitbucket_auto_unapprove_plugin 1.0.0 Yes
Application atlassian bitbucket_auto_unapprove_plugin 1.0.0 Yes
Application atlassian bitbucket_auto_unapprove_plugin 1.1.0 Yes
Application atlassian bitbucket_auto_unapprove_plugin 1.2.0 Yes
Application atlassian bitbucket_auto_unapprove_plugin 2.0.1 Yes
Application atlassian bitbucket_auto_unapprove_plugin 2.0.2 Yes
Application atlassian bitbucket_auto_unapprove_plugin 2.0.4 Yes
Application atlassian bitbucket_auto_unapprove_plugin 2.1.1 Yes
Application atlassian bitbucket_auto_unapprove_plugin 2.1.3 Yes
Application atlassian bitbucket_auto_unapprove_plugin 2.2.0 Yes
Application atlassian bitbucket_auto_unapprove_plugin 3.0.0 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For atlassian's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.