Authentication bypass using an alternate path or channel in Vantara Pentaho Business Analytics Server - CVE-2022-43939

Vulnerability details

The vulnerability allows a remote attacker to bypass authentication. 

The vulnerability exists due to an error when handling non-canonical URLs. A remote non-authenticated attacker can bypass authentication process using a specially crafted URL and gain unauthorized access to the application.

Affected software

How to mitigate CVE-2022-43939

Links to Public Exploits and PoC-codes

• Exploit #11188 - Pentaho BA Server EE 9.3.0.0-428 - Remote Code Execution (RCE) (Unauthenticated) (March 4, 2025)
• Exploit #11186 - Pentaho Business Server Auth Bypass and Server Side Template Injection RCE (March 4, 2025)

External References

• http://packetstormsecurity.com/files/172296/Pentaho-Business-Server-Authentication-Bypass-SSTI-Code-Execution.html
• https://support.pentaho.com/hc/en-us/articles/14455394120333--Resolved-Pentaho-BA-Server-Use-of-Non-Canonical-URL-Paths-for-Authorization-Decisions-Versions-before-9-4-0-1-and-9-3-0-2-including-8-3-x-Impacted-CVE-2022-43939-

Related Security Bulletins

• Multiple vulnerabilities in Hitachi Vantara Pentaho Business Analytics Server