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Confluence Security Advisory - Critical severity unauthenticated remote code execution vulnerability - CVE-2022-26134
Dear customer,
on the 2nd of June 2022 10 PM CEST, Atlassian issued a Security Advisory for Confluence Server & Confluence Data Center. The Cloud versions of the applications as well as other Atlassian products are not affected.
What you need to know
Atlassian has been made aware of current active exploitation of a critical severity unauthenticated remote code execution vulnerability in Confluence Data Center and Server. Further details about the vulnerability are being withheld until a fix is available. There is no proof of concept for this vulnerability so the attack vector is not broadly available to the public.
Atlassian is actively working on a patch for impacted versions and will update the advisory with estimates for completion.
Affected Versions
All versions include Confluence Server & Confluence Data Center
What should I do?
You use Confluence Server or Confluence Data Center
Update
Currently there is no fixed version, as soon as Atlassian releases a new version, we will update this page.
Workaround
There are currently no fixed versions of Confluence Server and Confluence Data Center available. In the interim, customers should work with their security team to consider the best course of action. Options to consider include:
Restricting access to Confluence Server and Data Center instances from the internet.
Disabling Confluence Server and Data Center instances.
If you are unable to take the above actions implementing a WAF (Web Application Firewall) rule which blocks URLs containing ${ may reduce your risk.
This advisory will be updated as fixes become available..
You use Confluence Cloud
You are not affected by this Security Advisory.
No need for action.
You use Confluence Server or Confluence Data Center
Update
Currently there is no fixed version, as soon as Atlassian releases a new version, we will update this page and we will inform affected customers.
LTS Update Package Customers will get an update to the latest LTS release free of charge as soon as possible.
Workaround
A workaround has been implemented to secure instances hosted on the bitvoodoo cloud. We will update the instances as soon as the fixed version is available.
Further Reading
- Volexity - Zero-Day Exploitation of Atlassian Confluence
- CVE-2022-26134
- Confluence Security Advisory 2022-06-02
Support
If you still have questions or concerns regarding this advisory, please contact the bitvoodoo support via support.bitvoodoo.ch.