CVE-2021-39226

KEV
Published: Ott 05, 2021 Last Modified: Ott 24, 2025
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
MEDIUM 6,8
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,9435
Percentile
1,0th
Updated

EPSS Score Trend (Last 91 Days)

287

Improper Authentication

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability Access Control
Potential Impacts:
Read Application Data Gain Privileges Or Assume Identity Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: ICS/OT, Not Technology-Specific, Web Based
Likelihood of Exploit: High
View CWE Details
862

Missing Authorization

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Availability
Potential Impacts:
Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)
Applicable Platforms
Technologies: AI/ML, Database Server, Not Technology-Specific, Web Server
Likelihood of Exploit: High
View CWE Details
Application

Grafana by Grafana

Product Information
Vendor Grafana
Product Grafana
Version Range Affected
From 8.0.0 (inclusive)
To 8.1.6 (exclusive)
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Fedora by Fedoraproject

Product Information
Vendor Fedoraproject
Product Fedora
Version 35
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Fedora by Fedoraproject

Product Information
Vendor Fedoraproject
Product Fedora
Version 34
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Grafana by Grafana

Product Information
Vendor Grafana
Product Grafana
Version Range Affected
To 7.5.11 (exclusive)
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
https://github.com/grafana/grafana/commit/2d456a6375855364d…
https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667…
https://github.com/grafana/grafana/security/advisories/GHSA…
https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9
https://grafana.com/docs/grafana/latest/release-notes/relea…
https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/
https://grafana.com/docs/grafana/latest/release-notes/relea…
https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/
https://lists.fedoraproject.org/archives/list/package-annou…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://lists.fedoraproject.org/archives/list/package-annou…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://security.netapp.com/advisory/ntap-20211029-0008/
https://security.netapp.com/advisory/ntap-20211029-0008/
http://www.openwall.com/lists/oss-security/2021/10/05/4
http://www.openwall.com/lists/oss-security/2021/10/05/4
https://github.com/grafana/grafana/commit/2d456a6375855364d…
https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667…
https://github.com/grafana/grafana/security/advisories/GHSA…
https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9
https://grafana.com/docs/grafana/latest/release-notes/relea…
https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/
https://grafana.com/docs/grafana/latest/release-notes/relea…
https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/
https://lists.fedoraproject.org/archives/list/package-annou…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://lists.fedoraproject.org/archives/list/package-annou…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://security.netapp.com/advisory/ntap-20211029-0008/
https://security.netapp.com/advisory/ntap-20211029-0008/
http://www.openwall.com/lists/oss-security/2021/10/05/4
http://www.openwall.com/lists/oss-security/2021/10/05/4