Headline
CVE-2022-39306: Email addresses and usernames can not be trusted
Grafana is an open-source platform for monitoring and observability. Versions prior to 9.2.4, or 8.5.15 on the 8.X branch, are subject to Improper Input Validation. Grafana admins can invite other members to the organization they are an admin for. When admins add members to the organization, non existing users get an email invite, existing members are added directly to the organization. When an invite link is sent, it allows users to sign up with whatever username/email address the user chooses and become a member of the organization. This introduces a vulnerability which can be used with malicious intent. This issue is patched in version 9.2.4, and has been backported to 8.5.15. There are no known workarounds.
Today we are releasing Grafana 9.2.4. Alongside other bug fixes, this patch release includes moderate severity security fixes for CVE-2022-39306.
We are also releasing security patches for Grafana 8.5.15 to fix these issues.
Release 9.2.4, latest patch, also containing security fix:
- Download Grafana 9.2.4
Release 8.5.15, only containing security fix:
- Download Grafana 8.5.15
Appropriate patches have been applied to Grafana Cloud and as always, we closely coordinated with all cloud providers licensed to offer Grafana Pro. They have received early notification under embargo and confirmed that their offerings are secure at the time of this announcement. This is applicable to Amazon Managed Grafana and Azure Managed Grafana as a service offering.
Privilege escalation****Summary
Grafana admins can invite other members to the organization they are an admin for. When admins add members to the organization, non existing users get an email invite, existing members are added directly to the organization.
When an invite link is sent, it allows users to sign up with whatever username/email address the user chooses and become a member of the organization.
The CVSS score for this vulnerability is 6.4 Moderate
Impact
Vulnerability makes it possible to use the invitation link to sign up with an arbitrary username/email with a malicious intent.
Impacted versions
All installations for Grafana versions Grafana <=9.x, <8.x
Solutions and mitigations
To fully address CVE-2022-39306, please upgrade your Grafana instances.
Appropriate patches have been applied to Grafana Cloud.
Reporting security issues
If you think you have found a security vulnerability, please send a report to [email protected]. This address can be used for all of Grafana Labs’ open source and commercial products (including, but not limited to Grafana, Grafana Cloud, Grafana Enterprise, and grafana.com). We can accept only vulnerability reports at this address. We would prefer that you encrypt your message to us by using our PGP key. The key fingerprint is
F988 7BEA 027A 049F AE8E 5CAA D125 8932 BE24 C5CA
The key is available from keyserver.ubuntu.com.
Security announcements
We maintain a security category on our blog, where we will always post a summary, remediation, and mitigation details for any patch containing security fixes.
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Related news
Today we are releasing Grafana 9.2.4. Alongside other bug fixes, this patch release includes moderate severity security fixes for CVE-2022-39306. We are also releasing security patches for Grafana 8.5.15 to fix these issues. Release 9.2.4, latest patch, also containing security fix: - [Download Grafana 9.2.4](https://grafana.com/grafana/download/9.2.4) Release 8.5.15, only containing security fix: - [Download Grafana 8.5.15](https://grafana.com/grafana/download/8.5.15) Appropriate patches have been applied to [Grafana Cloud](https://grafana.com/cloud) and as always, we closely coordinated with all cloud providers licensed to offer Grafana Pro. They have received early notification under embargo and confirmed that their offerings are secure at the time of this announcement. This is applicable to Amazon Managed Grafana and Azure Managed Grafana as a service offering. ## Privilege escalation ### Summary Grafana admins can invite other members to the organization they are an adm...
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