CVE-2023-3128

grafana: account takeover possible when using Azure AD OAuth

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Grafana is validating Azure AD accounts based on the email claim. On Azure AD, the profile email field is not unique and can be easily modified. This leads to account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant app.

A flaw was found in Grafana, which validates Azure AD accounts based on the email claim. On Azure AD, the profile email field is not unique across Azure AD tenants, which enables Grafana account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant AzureAD OAuth application. This may allow an attacker to gain complete control of the user's account, including access to private customer data and sensitive information.

Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Yes

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2023-06-06 CVE Reserved
2023-06-22 CVE Published
2025-02-13 CVE Updated
2025-04-13 First Exploit
2025-05-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-290: Authentication Bypass by Spoofing
CWE-305: Authentication Bypass by Primary Weakness

CAPEC

CAPEC-115: Authentication Bypass

References (6)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20230714-0004	Third Party Advisory

URL	Date	SRC
https://github.com/spyata123/CVE-2023-3128	2025-04-13

URL	Date	SRC

URL	Date	SRC
https://github.com/grafana/bugbounty/security/advisories/GHSA-gxh2-6vvc-rrgp	2023-07-21
https://grafana.com/security/security-advisories/cve-2023-3128	2023-07-21
https://access.redhat.com/security/cve/CVE-2023-3128	2024-06-14
https://bugzilla.redhat.com/show_bug.cgi?id=2213626	2024-06-14

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 6.7.0 < 8.5.27 Search vendor "Grafana" for product "Grafana" and version " >= 6.7.0 < 8.5.27"		-		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 6.7.0 < 8.5.27 Search vendor "Grafana" for product "Grafana" and version " >= 6.7.0 < 8.5.27"		enterprise		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.2.0 < 9.2.20 Search vendor "Grafana" for product "Grafana" and version " >= 9.2.0 < 9.2.20"		-		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.2.0 < 9.2.20 Search vendor "Grafana" for product "Grafana" and version " >= 9.2.0 < 9.2.20"		enterprise		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.3.0 < 9.3.16 Search vendor "Grafana" for product "Grafana" and version " >= 9.3.0 < 9.3.16"		-		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.3.0 < 9.3.16 Search vendor "Grafana" for product "Grafana" and version " >= 9.3.0 < 9.3.16"		enterprise		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.4.0 < 9.4.13 Search vendor "Grafana" for product "Grafana" and version " >= 9.4.0 < 9.4.13"		-		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.4.0 < 9.4.13 Search vendor "Grafana" for product "Grafana" and version " >= 9.4.0 < 9.4.13"		enterprise		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.5.0 < 9.5.4 Search vendor "Grafana" for product "Grafana" and version " >= 9.5.0 < 9.5.4"		-		Affected
Grafana Search vendor "Grafana"		Grafana Search vendor "Grafana" for product "Grafana"				>= 9.5.0 < 9.5.4 Search vendor "Grafana" for product "Grafana" and version " >= 9.5.0 < 9.5.4"		enterprise		Affected