CVE-2021-39226

high

Description

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.

References

https://security.netapp.com/advisory/ntap-20211029-0008/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/

https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/

https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/

https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9

https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269

http://www.openwall.com/lists/oss-security/2021/10/05/4

Details

Source: Mitre, NVD

Published: 2021-10-05

Updated: 2024-06-28

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Severity: High