CVE-2021-39226

CVSS V2 Medium 6.8 CVSS V3 High 7.3

Description

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.

Overview

CVE ID
CVE-2021-39226

Assigner
security-advisories@github.com

Vulnerability Status
Analyzed

Published Version
2021-10-05T18:15:07

Last Modified Date
2021-11-28T23:22:05

Weakness Enumerations

CWE	URL
CWE-287	http://cwe.mitre.org/data/definitions/287.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:grafana:grafana::::::::	1	OR		7.5.11
cpe:2.3:a:grafana:grafana::::::::	1	OR	8.0.0	8.1.6
cpe:2.3:o:fedoraproject:fedora:34:::::::*	1	OR
cpe:2.3:o:fedoraproject:fedora:35:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
6.8

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
6.4

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
LOW

Availability Impact
LOW

Base Score
7.3

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.4

References

Reference URL	Reference Tags
https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269	Patch Third Party Advisory
https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/	Release Notes Vendor Advisory
https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9	Third Party Advisory
https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/	Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/10/05/4	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20211029-0008/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/	Mailing List Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-39226
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39226

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:44:47				Added to TrackCVE
2022-12-05 11:50:03	2021-10-05T18:15Z	2021-10-05T18:15:07	CVE Published Date	updated
2022-12-05 11:50:03		2021-11-28T23:22:05	CVE Modified Date	updated
2022-12-05 11:50:03		Analyzed	Vulnerability Status	updated