[CVE-2021-39226] Grafana Authentication Bypass Vulnerability

SecurityDesk
2022.08.25 00:00 조회 7

CISA KEV 정보

취약점명Grafana Authentication Bypass Vulnerability
설명Grafana contains an authentication bypass vulnerability that allows authenticated and unauthenticated users to view and delete all snapshot data, potentially resulting in complete snapshot data loss.
조치사항Apply updates per vendor instructions.
랜섬웨어 캠페인 악용Unknown
CWECWE-287
등록일 (KEV)2022-08-25
조치 기한2022-09-15
추가 참고https://grafana.com/blog/2021/10/05/grafana-7.5.11-and-8.1.6-released-with-critical-security-fix/; https://nvd.nist.gov/vuln/detail/CVE-2021-39226

NVD 상세 정보

CVSS v3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0: 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

설명: 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.

CWE: CWE-287 | CWE-862

참조

This product uses the NVD API but is not endorsed or certified by the NVD.



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