CVE-2022-39306

Ein entfernter, authentisierter oder anonymer Angreifer kann mehrere Schwachstellen in Grafana ausnutzen, um Benutzerrechte zu erlangen, seine Privilegien zu erweitern und um Informationen offenzulegen.

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 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](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N&version=3.1) ### 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](https://grafana.com/cloud). ## Reporting security issues If you think you have found a security vulnerability, please send a report to security@grafana.com. 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](https://community.grafana.com/c/support/security-announcements) on our blog, where we will always post a summary, remediation, and mitigation details for any patch containing security fixes. You can also subscribe to our [RSS feed](https://grafana.com/tags/security/index.xml).

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.

Grafana Email addresses and usernames can not be trusted in github.com/grafana/grafana. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/grafana/grafana from v8.0.0 before v8.5.15, from v9.0.0 before v9.2.4.