Vulnerability Details : 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.
Products affected by CVE-2017-16857
- 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:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-16857
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-16857
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
NIST | |
|
8.5
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
1.8
|
6.0
|
NIST |
CWE ids for CVE-2017-16857
-
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-16857
-
https://jira.atlassian.com/browse/BSERV-10439
[BSERV-10439] Race condition in auto-unapprove plugin - CVE-2017-16857 - Create and track feature requests for Atlassian products.Issue Tracking;Vendor Advisory
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