VDB-183872 · CVE-2021-39226 · GHSA-69j6-29vr-p3j9

Grafana Labs prior 7.5.11/8.1.6 Permission improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.8	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Grafana Labs Grafana prior 7.5.11/8.1.6. The impacted element is an unknown function of the component Permission Handler. Such manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2021-39226. The attack can be launched remotely. Moreover, an exploit is present. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Grafana Labs Grafana prior 7.5.11/8.1.6. Affected by this issue is an unknown part of the component Permission Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 10/06/2021 as GHSA-69j6-29vr-p3j9. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-39226 since 08/16/2021. Technical details are unknown but an exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/18/2025).

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 236664 (Alibaba Cloud Linux 3 : 0073: grafana (ALINUX3-SA-2021:0073)), which helps to determine the existence of the flaw in a target environment. This issue was added on 08/25/2022 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 09/15/2022:

Apply updates per vendor instructions.

Upgrading to version 8.1.6 or 7.5.11 eliminates this vulnerability. Applying the patch 2d456a6375855364d098ede379438bf7f0667269 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (236664). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Grafana Labs

Name

Grafana

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 236664
Nessus Name: Alibaba Cloud Linux 3 : 0073: grafana (ALINUX3-SA-2021:0073)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Grafana 8.1.6/7.5.11
Patch: 2d456a6375855364d098ede379438bf7f0667269

Timelineinfo

08/16/2021 🔍
10/06/2021 +51 days 🔍
10/06/2021 +0 days 🔍
05/18/2025 +1320 days 🔍

Sourcesinfo

Advisory: GHSA-69j6-29vr-p3j9
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-39226 (🔍)
GCVE (CVE): GCVE-0-2021-39226
GCVE (VulDB): GCVE-100-183872
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/06/2021 08:34
Updated: 05/18/2025 19:33
Changes: 10/06/2021 08:34 (52), 10/09/2021 11:09 (2), 04/27/2024 13:35 (27), 06/28/2024 22:58 (19), 09/24/2024 11:53 (1), 05/18/2025 19:33 (2)
Complete: 🔍
Committer: roga
Cache ID: 216::103

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