GHSA-p978-56hq-r492 BIT-grafana-2022-36062 CVE-2022-36062 GO-2024-2854
Grafana folders admin only permission privilege escalation
- Severity
- 0.0 / 10
- Low · CVSS 4.0
- Exploit chance (EPSS)
- 0.75%
- Chance of exploitation in the next 30 days. Higher than 54.92% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-281 Improper Preservation of Permissions
- Fix
8.5.13- Upgrade github.com/grafana/grafana to this version or later
Description
Today we are releasing Grafana 9.1.6, 9.0.9, 8.5.13. This patch release includes a Moderate severity security fix for CVE-2022-36062 that affects Grafana instances which are using Grafana role-based access control (RBAC).
Release 9.1.6, latest patch, also containing security fix:
Release 9.0.9, only containing security fix:
Release 8.5.13, only containing security fix:
Appropriate patches have been applied to Grafana Cloud and as always, we closely coordinated with all cloud providers licensed to offer Grafana Pro. They have received early notification under embargo and confirmed that their offerings are secure at the time of this announcement. This is applicable to Amazon Managed Grafana and Azure's Grafana as a service offering.
Privilege escalation (CVE-2022-36062)
Summary
On August 29 we have received a bug report for Grafana role-based access control (RBAC) and confirmed a vulnerability in the Grafana. This vulnerability impacts folders/dashboards with Admin only permissions and where RBAC was ever enabled at least once.
When RBAC is enabled, Grafana runs migrations which translate legacy access control permissions into RBAC permissions. The migrations contain a bug, which grants additional access to folders/dashboards which only had Admin role grant, resulting in a privilege escalation where Editors can edit and Viewers can view the folder/dashboard which they should not have access to.
The CVSS score for this vulnerability is 6.4 Moderate (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L).
Impacted versions
All Grafana installations where the RBAC was at least enabled once and there are folders/dashboards with only Admin grant.
Solutions and mitigations
To fully address CVE-2022-36062 please upgrade your Grafana instances. They are only required if you have ever enabled RBAC and have dashboards/folders where Admin is the only permission..
If you can’t upgrade, as a workaround when impacted folder/dashboard is known, the additional permissions can be removed manually.
Appropriate patches have been applied to Grafana Cloud.
Timeline
Here is a timeline starting from when we originally learned of the issue.
- 2022-08-27: External report received about a bug in Grafana role-based access control.
- 2022-08-30: The bug is confirmed as a vulnerability.
- 2022-08-31: Mitigation is applied to Grafana Cloud.
- 2022-08-31: Release timeline determined: 2022-09-06 for private customer release, 2022-09-20 for public release.
- 2022-09-06: Private release.
- 2022-09-20: Public release.
Reporting security issues
If you think you have found a security vulnerability, please send a report to security@grafana.com. This address can be used for all of Grafana Labs' open source and commercial products (including, but not limited to Grafana, Grafana Cloud, Grafana Enterprise, and grafana.com). We can accept only vulnerability reports at this address. We would prefer that you encrypt your message to us by using our PGP key. The key fingerprint is
F988 7BEA 027A 049F AE8E 5CAA D125 8932 BE24 C5CA
The key is available from keyserver.ubuntu.com.
Security announcements
We maintain a security category on our blog, where we will always post a summary, remediation, and mitigation details for any patch containing security fixes.
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Affected versions
Go
| Package | Vulnerable | Fixed in |
|---|---|---|
| github.com/grafana/grafana | >= 8.5.0, < 8.5.13 |
8.5.13 |
| github.com/grafana/grafana | >= 9.0.0, < 9.0.9 |
9.0.9 |
| github.com/grafana/grafana | >= 9.1.0, < 9.1.6 |
9.1.6 |
| github.com/grafana/grafana | all versions |
No fix yet |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
github.com/grafana/grafana Go → 8.5.13
- go
go get github.com/grafana/grafana@v8.5.13 && go mod tidy
Severity breakdown
CVSS 4.0 0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- Low
- User interaction
- None
- Confidentiality (vulnerable system)
- High
- Integrity (vulnerable system)
- Low
- Availability (vulnerable system)
- Low
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
CVSS 3.1 7.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- Low
- Availability
- Low
Weakness
CWE-281: Improper Preservation of Permissions
The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-8pjx-jj86-j47p Grafana path traversal | High Known exploited | Also affects github.com/grafana/grafana |
| CVE-2021-39226 Authentication bypass for viewing and deletions of snapshots | High Known exploited | Also affects github.com/grafana/grafana |
| GHSA-3w66-95m3-8jxg Grafana: Pre-authentication denial of service in the public dashboard query handler | High | Also affects github.com/grafana/grafana |
| GHSA-9g84-39mm-q4p3 Grafana geomap panel's XYZ tile layer has a sanitize-then-interpolate ordering bug | Medium | Also affects github.com/grafana/grafana |
| GHSA-f74p-cwhp-x2wx Grafana Loki datasource plugin's callResource handler contains a path traversal vulnerability. | High | Also affects github.com/grafana/grafana |
| GHSA-9493-h4f5-633x Grafana: Path traversal in the Tempo and Loki data source plugins | Medium | Also affects github.com/grafana/grafana |
| GHSA-wfhv-mj62-f5xh Grafana: Users can generate Service Account tokens after permissions removal | High | Also affects github.com/grafana/grafana |
| GHSA-gxcp-jjxh-rwp4 Grafana: SQL Expressions Read File From Disk | Medium | Also affects github.com/grafana/grafana |
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