Vulnerability Description
Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 contains a directory traversal vulnerability for fully lowercase or fully uppercase .md files. The vulnerability is limited in scope, and only allows access to files with the extension .md to authenticated users only. Grafana Cloud instances have not been affected by the vulnerability. Users should upgrade to patched versions 8.3.2 or 7.5.12. For users who cannot upgrade, running a reverse proxy in front of Grafana that normalizes the PATH of the request will mitigate the vulnerability. The proxy will have to also be able to handle url encoded paths. Alternatively, for fully lowercase or fully uppercase .md files, users can block /api/plugins/.*/markdown/.* without losing any functionality beyond inlined plugin help text.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Grafana | Grafana | >= 5.0.0, < 7.5.12 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/12/10/4Mailing ListPatchRelease Notes
- https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bBroken Link
- https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca30PatchThird Party Advisory
- https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2qPatchRelease NotesThird Party Advisory
- https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderPatchRelease NotesVendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/Release NotesVendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/Release NotesVendor Advisory
- https://security.netapp.com/advisory/ntap-20220107-0006/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/12/10/4Mailing ListPatchRelease Notes
- https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bBroken Link
- https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca30PatchThird Party Advisory
- https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2qPatchRelease NotesThird Party Advisory
- https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderPatchRelease NotesVendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/Release NotesVendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/Release NotesVendor Advisory
FAQ
What is CVE-2021-43813?
CVE-2021-43813 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 contains a directory traversal vulnerability for fully lowercase or fully uppercase .md ...
How severe is CVE-2021-43813?
CVE-2021-43813 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-43813?
Check the references section above for vendor advisories and patch information. Affected products include: Grafana Grafana.