2020/11/16 - Security improvements

A security issue was fixed on November, 16th 2020.

Nature of the issue

A security vulnerability was recently identified in Elements Copy & Sync.
The vulnerability affected version 1.0.3-AC of Elements Copy & Sync. The vulnerability meant that Copy & Sync recipe configuration may have been compromised from October, 1st to November, 16th.

This vulnerability has been rated as critical, according to the scale published on the Common Vulnerability Scoring System (CVSS).

The vulnerability was brought to our attention by the Bug Bounty program. 

Impact

Based on our investigations, the vulnerability may have lead an unidentified user to update copy recipes from outside Jira admin.

This only impacted Copy & Sync recipes created on Jira instances, no Jira data was compromised.

Analysis and actions taken

Once we became aware of the issue, we reproduced and identified the problem's origin, which was the Spring security configuration. Based on what we found, we fixed the configuration and improved the way we verify JWT tokens for more reliability. This vulnerability is now fixed.

Then we worked with Atlassian to update the Atlassian Marketplace with an updated listing of our app that is free from this vulnerability.

No further action is required from any user at this point.

Conclusion

We want you to know that we take this issue very seriously. We are conducting a thorough review of our internal processes to ensure this does not occur again for you and our other customers.

If you have any questions, please feel free to raise a support request at support.elements-apps.com referencing "ECSC-1".