GHSA-63g3-9jq3-mccv BIT-grafana-2022-21713 CVE-2022-21713
Grafana API IDOR
- Severity
- 4.3 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 1.18%
- Chance of exploitation in the next 30 days. Higher than 67.58% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Fix
7.5.15- Upgrade github.com/grafana/grafana to this version or later
Description
Today we are releasing Grafana 8.3.5 and 7.5.14. This patch release includes MEDIUM severity security fix for Grafana Teams API IDOR.
Release v.8.3.5, only containing security fixes:
Release v.7.5.15, only containing security fixes:
Teams API IDOR(CVE-2022-21713)
On Jan. 18, an external security researcher, Kürşad ALSAN from NSPECT.IO (@nspectio on Twitter), contacted Grafana to disclose an IDOR (Insecure Direct Object Reference) vulnerability on Grafana Teams APIs.
We believe that this vulnerability is rated at CVSS 4.3 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).
Impact
This vulnerability only impacts the following API endpoints:
/teams/:teamId- an authenticated attacker can view unintended data by querying for the specific team ID./teams/:search- an authenticated attacker can search for teams and see the total number of available teams, including for those teams that the user does not have access to./teams/:teamId/members- when editors_can_admin flag is enabled, an authenticated attacker can see unintended data by querying for the specific team ID.
Affected versions with MEDIUM severity
All Grafana >=5.0.0-beta1 versions are affected by this vulnerability.
Solutions and mitigations
All installations after Grafana v5.0.0-beta1 should be upgraded as soon as possible.
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.
Timeline and postmortem
Here is a detailed timeline starting from when we originally learned of the issue. All times in UTC.
- 2022-01-18 05:000 Issue submitted by external researcher
- 2022-01-21 17:45 Issue escalated and the vulnerability confirmed reproducible
- 2022-01-24 13:37 CVE requested
- 2022-01-24 14:40 Private release planned for 2022-01-25, and public release planned for 2022-02-01.
- 2022-01-24 17:00 PR with fix opened
- 2022-01-24 19:00 GitHub has issued CVE-2022-21713
- 2022-01-25 12:00 Private release
- 2022-02-01 12:00 During public release process, we realized that private 7.x release was incomplete. Abort public release, send second private release to customers using 7.x
- 2022-02-08 13:00 Public release
Acknowledgements
We would like to thank Kürşad ALSAN from NSPECT.IO (@nspectio on Twitter) for responsibly disclosing the vulnerability.
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.
You can also subscribe to our RSS feed.
Affected versions
Go
| Package | Vulnerable | Fixed in |
|---|---|---|
| github.com/grafana/grafana | >= 5.0.0-beta1, < 7.5.15 |
7.5.15 |
| github.com/grafana/grafana | >= 8.0.0, < 8.3.5 |
8.3.5 |
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 → 7.5.15
- go
go get github.com/grafana/grafana@v7.5.15 && go mod tidy
Severity breakdown
CVSS 3.1 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Weakness
CWE-639: Authorization Bypass Through User-Controlled Key
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
How to prevent it
- Architecture and Design: For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
- Architecture and Design, Implementation: Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
- Architecture and Design: Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.
CWE-863: Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
How to prevent it
- Architecture and Design: Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
- Architecture and Design: Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
- Architecture and Design: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
- Architecture and Design: For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page. One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
- System Configuration, Installation: Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
References
Advisories
Packages
Other links
- github.com/grafana/grafana/security/advisories/GHSA-63g3-9jq3-mccv
- github.com/grafana/grafana/pull/45083
- grafana.com/blog/2022/02/08/grafana-7.5.15-and-8.3.5-released-with-moderate-seve…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2PFW6…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36GUE…
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HLAQR…
- security.netapp.com/advisory/ntap-20220303-0005
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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