CVE-2021-39226 (GCVE-0-2021-39226)
Vulnerability from cvelistv5
Published
2021-10-05 17:30
Modified
2025-10-21 23:25
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-287 - Improper Authentication
Summary
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
security-advisories@github.com http://www.openwall.com/lists/oss-security/2021/10/05/4 Mailing List, Third Party Advisory
security-advisories@github.com https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269 Patch
security-advisories@github.com https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9 Exploit, Mitigation, Vendor Advisory
security-advisories@github.com https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/ Release Notes
security-advisories@github.com https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/ Release Notes
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/ Broken Link
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/ Broken Link
security-advisories@github.com https://security.netapp.com/advisory/ntap-20211029-0008/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.openwall.com/lists/oss-security/2021/10/05/4 Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269 Patch
af854a3a-2127-422b-91ae-364da2661108 https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9 Exploit, Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/ Release Notes
af854a3a-2127-422b-91ae-364da2661108 https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/ Release Notes
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/ Broken Link
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/ Broken Link
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20211029-0008/ Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-39226 US Government Resource
Impacted products
Vendor Product Version
grafana grafana Version: >= 8.0.0, < 8.1.6
Version: < 7.5.11
 Create a notification for this product.
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2022-08-25

Due date: 2022-09-15

Required action: Apply updates per vendor instructions.

Used in ransomware: Unknown

Notes: https://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

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En las versiones afectadas los usuarios no autenticados y autenticados son capaces de visualizar la snapshot con la clave de base de datos m\u00e1s baja accediendo a las rutas literales /dashboard/snapshot/:key, o /api/snapshots/:key. Si el ajuste de configuraci\u00f3n \\\"public_mode\\\" de la snapshot se establece en true (frente a default o false), unos usuarios no autenticados pueden eliminar la snapshot con la clave de base de datos m\u00e1s baja al acceder a la ruta literal /api/snapshots-delete/:deleteKey. Independientemente de la configuraci\u00f3n de \\\"public_mode\\\" de la snapshot, unos usuarios autenticados pueden eliminar la snapshot con la clave de base de datos m\u00e1s baja accediendo a las rutas literales: /api/snapshots/:key, o /api/snapshots-delete/:deleteKey. La combinaci\u00f3n de borrado y visualizaci\u00f3n permite un recorrido completo mediante todos los datos de las snapshots mientras se produce una p\u00e9rdida total de datos de las mismas. Este problema se ha resuelto en las versiones 8.1.6 y 7.5.11. Si por alguna raz\u00f3n no puede actualizar puede usar un proxy inverso o similar para bloquear el acceso a las rutas literales /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, y /api/snapshots/:key. No tienen ninguna funci\u00f3n normal y pueden ser deshabilitadas sin efectos 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}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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