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Test ID:1.3.6.1.4.1.25623.1.0.146863
Category:Web application abuses
Title:Grafana 2.0.1 < 7.5.11, 8.x < 8.1.6 Snapshot Authentication Bypass Vulnerability (GHSA-69j6-29vr-p3j9)
Summary:Grafana is prone to an authentication bypass vulnerability in; the snapshot functionality.
Description:Summary:
Grafana is prone to an authentication bypass vulnerability in
the snapshot functionality.

Vulnerability Insight:
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.

Affected Software/OS:
Grafana version 2.0.1 through 7.5.10 and 8.x through 8.1.5.

Solution:
Update to version 7.5.11, 8.1.6 or later.

CVSS Score:
6.8

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-39226
https://github.com/grafana/grafana/security/advisories/GHSA-69j6-29vr-p3j9
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DCKBFUSY6V4VU5AQUYWKISREZX5NLQJT/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E6ANHRDBXQT6TURLP2THM26ZPDINFBEG/
https://github.com/grafana/grafana/commit/2d456a6375855364d098ede379438bf7f0667269
https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-11/
https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-1-6/
http://www.openwall.com/lists/oss-security/2021/10/05/4
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