Vulnerability in Atlassian Bitbucket Auto Unapprove Plugin (CVE-2017-16857)
Summary
Vulnerability in Atlassian Bitbucket Auto Unapprove Plugin (CVE-2017-16857). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2017-16857 has been found in Atlassian Bitbucket Auto Unapprove Plugin.
Successful exploitation can lead to full system takeover. CVSS score: 8.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Atlassian Bitbucket Auto Unapprove Plugin CVE-2017-16857" on the vendor's site.
CVE-2017-16857 (Atlassian Bitbucket Auto Unapprove Plugin) — CWE-362 / CVSS v3 8.5
Attack vector: remote (network-reachable) / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-362) exists in Atlassian Bitbucket Auto Unapprove Plugin.
Check the vendor advisory for the affected versions of Atlassian Bitbucket Auto Unapprove Plugin.
Severity: High (CVSS 8.5/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Atlassian Bitbucket Auto Unapprove Plugin を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- patch jira.atlassian.com