CVE-2017-16857 Race condition in Auto-Unapprove Plugin (for Bitbucket Server)
Attackers can bypass code review restrictions via race conditions to merge unauthorized code into repositories using the Bitbucket auto-unapprove plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-16857?
CVE-2017-16857 is a high-severity vulnerability in Atlassian Auto-Unapprove Plugin (for Bitbucket Server), published on 5 Dec 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-362
Which versions are affected by CVE-2017-16857?
It affects 1 product.
Products include Atlassian Bitbucket Auto Unapprove Plugin.
How do I fix CVE-2017-16857?
No fix has been published for CVE-2017-16857 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-16857 being exploited?
There is no known exploitation of CVE-2017-16857 in the wild and no public exploit code.
Sources
Also known as GHSA-wrg5-4633-4gg8.