SB2023112329 - Red Hat Enterprise Linux 8 update for grafana

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Main Vulnerability Database SB2023112329

SB2023112329 - Red Hat Enterprise Linux 8 update for grafana

Published: November 23, 2023

Security Bulletin ID SB2023112329
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper Authentication (CVE-ID: CVE-2023-3128)

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in Azure AD OAuth implementation. 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. A remote attacker can modify their profile and provide the email address of  an existing Grafana user, bypass authentication process and gain unauthorized access to the application.

The vulnerability affects Grafana installations with Azure AD OAuth configured for a multi-tenant app.



Remediation

Install update from vendor's website.

References