Authorization Bypass Through User-Controlled Key Affecting grafana package, versions <0:7.3.6-3.el8_4


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
91.02% (99th percentile)

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  • Snyk IDSNYK-RHEL8-GRAFANA-4101365
  • published7 Oct 2021
  • disclosed5 Oct 2021

Introduced: 5 Oct 2021

CVE-2021-39226  (opens in a new tab)
CWE-639  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:8 grafana to version 0:7.3.6-3.el8_4 or higher.
This issue was patched in RHSA-2021:3771.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grafana package and not the grafana package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Grafana is an open source data visualization platform. In affected versions unauthenticated and authenticated users are able to view the snapshot with the lowest database key by accessing the literal paths: /dashboard/snapshot/:key, or /api/snapshots/:key. If the snapshot "public_mode" configuration setting is set to true (vs default of false), unauthenticated users are able to delete the snapshot with the lowest database key by accessing the literal path: /api/snapshots-delete/:deleteKey. Regardless of the snapshot "public_mode" setting, authenticated users are able to delete the snapshot with the lowest database key by accessing the literal paths: /api/snapshots/:key, or /api/snapshots-delete/:deleteKey. The combination of deletion and viewing enables a complete walk through all snapshot data while resulting in complete snapshot data loss. This issue has been resolved in versions 8.1.6 and 7.5.11. If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side effects.

CVSS Scores

version 3.1