[midPoint] Security Advisory: HTTP error codes used for SecQ REST authentication reveal user existence

Radovan Semancik radovan.semancik at evolveum.com
Fri Oct 11 09:47:18 UTC 2019

Date: 11 October 2019
Severity: Low (CVSS 0.1 - 3.9)
Affected versions: all released midPoint versions
Fixed in versions: 4.0.1 (unreleased), 3.9.1 (unreleased), 3.8.1 
(unreleased), 3.7.3 (unreleased)


HTTP error codes used for REST authentication based on security 
questions (a.k.a. SecQ) reveal user existence.

Severity and Impact

Attacker can use REST request to determine whether a user exists. 
Attacker cannot gain access to any other information or any unauthorized 


Users of affected MidPoint versions are advised to upgrade their 
deployments to the latest builds from the support branches.

As this is a low severity issue, it is not forcing official maintenance 
releases of midPoint. However, the fix is provided in all the support 


This issue was reported by Nicolas Destorby the means of EU-Free and 
Open Source Software Auditing (EU-FOSSA2) project.

See Also


Radovan Semancik
Software Architect

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