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.

CVSS v3.0 8.5 HIGH
CVSS v2.0 6.0 MEDIUM

8.5^/10

CVSS v3.0 : HIGH

V3 Legend

Vector : AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.0^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 6.8 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://jira.atlassian.com/browse/BSERV-10439	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.1.0:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.1:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.2.0:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:beta1::::::
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.2.0:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:3.0.0:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.2:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.4:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.1.1:::::::*
	cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.1.3:::::::*

Information

Published : 2017-12-05 08:29

Updated : 2019-10-02 17:03

NVD link : CVE-2017-16857

Mitre link : CVE-2017-16857

JSON object : View

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Products Affected

atlassian

bitbucket_auto_unapprove_plugin

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8.5 /10