Vulnerability Details : CVE-2021-43815
Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 has a directory traversal for arbitrary .csv files. It only affects instances that have the developer testing tool called TestData DB data source enabled and configured. The vulnerability is limited in scope, and only allows access to files with the extension .csv to authenticated users only. Grafana Cloud instances have not been affected by the vulnerability. Versions 8.3.2 and 7.5.12 contain a patch for this issue. There is a workaround available 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.
Vulnerability category: Directory traversal
Products affected by CVE-2021-43815
- cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
- cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43815
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43815
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:P/I:N/A:N |
6.8
|
2.9
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
GitHub, Inc. |
CWE ids for CVE-2021-43815
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2021-43815
-
https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308d
chore(release-notes): add release notes for 8.2.3 and 7.5.12 (#42987) · grafana/grafana@fd48aee · GitHubPatch;Third Party Advisory
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https://security.netapp.com/advisory/ntap-20220107-0006/
January 2022 Grafana Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
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https://github.com/grafana/grafana/releases/tag/v8.3.2
Release 8.3.2 (2021-12-10) · grafana/grafana · GitHubRelease Notes;Third Party Advisory
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https://github.com/grafana/grafana/security/advisories/GHSA-7533-c8qv-jm9m
CVE-2021-43815: Grafana directory traversal for `.csv` files, 8.0.0-beta3 - 8.3.1 · Advisory · grafana/grafana · GitHubPatch;Third Party Advisory
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https://github.com/grafana/grafana/commit/d6ec6f8ad28f0212e584406730f939105ff6c6d3
Backport fix to main (#42979) · grafana/grafana@d6ec6f8 · GitHubPatch;Third Party Advisory
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https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/
Grafana 8.3.2 and 7.5.12 released with moderate severity security fix | Grafana LabsPatch;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2021/12/10/4
oss-security - CVE-2021-43813 and CVE-2021-43815 - Grafana directory traversal for some .md and .csv filesMailing List;Patch;Third Party Advisory
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