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Vulnerability · Published Dec 10, 2021 · Assigned by GitHub_M

CVE-2021-43815Grafana directory traversal for `.cvs` files

Medium 4.3

In plain English

A medium-severity path traversal in grafana from grafana. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)1.9%top 20.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20grafana8.3.2-r0ALPINE-CVE-2021-43815
Alpine:v3.21grafana8.3.2-r0ALPINE-CVE-2021-43815
Alpine:v3.22grafana8.3.2-r0ALPINE-CVE-2021-43815
Alpine:v3.23grafana8.3.2-r0ALPINE-CVE-2021-43815
Alpine:v3.24grafana8.3.2-r0ALPINE-CVE-2021-43815
Gogithub.com/grafana/grafana8.3.2GHSA-7533-c8qv-jm9m

Affected products (as reported)

VendorProductVersions
grafana grafana >= 8.0.0-beta3, < 8.3.2>= 5.0.0, < 7.5.12

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References