National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-16857 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.5 HIGH
Vector: AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H (V3 legend)
Impact Score: 6.0
Exploitability Score: 1.8


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.0 MEDIUM
Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 6.8


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): Single
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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

Technical Details

Vulnerability Type (View All)

  • Improper Access Control (CWE-284)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:beta1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:3.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-16857
NVD Published Date:
12/05/2017
NVD Last Modified:
12/22/2017