CVE-2021-43813

Name
CVE-2021-43813
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308d
MISC https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/
CONFIRM https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2q
MISC https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/
MISC https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/
MISC https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0f
MLIST http://www.openwall.com/lists/oss-security/2021/12/10/4

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* grafana >= 5.0.0 < 7.5.12
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* grafana >= 8.0.0 < 8.3.2

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
grafana 3.15-community 8.2.7-r0 Konstantin Kulikov <k.kulikov2@gmail.com> possibly vulnerable