Security Advisory WSO2-2021-1524

Published: May 09, 2022

Version: 1.0.0

Severity: Medium

CVSS Score: 6.8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N)


  • WSO2 API Manager : 2.6.0 , 3.0.0 , 3.1.0 , 3.2.0 , 4.0.0
  • WSO2 IS as Key Manager : 5.7.0 , 5.9.0 , 5.10.0
  • WSO2 Identity Server : 5.7.0 , 5.8.0 , 5.9.0 , 5.10.0 , 5.11.0


Improper authentication in the FIDO Rest API.


FIDO API can be accessed using the username and the password of a user, due to the improper authentication in the FIDO Rest API.


This vulnerability only impacts authentication flows where the FIDO authenticator is used. Additionally, in order to leverage this vulnerability a malicious actor should have the valid username and password of the targeted victim. If such information could be obtained, a malicious actor can invoke the FIDO endpoint using the username and password of the victim. Doing so, the malicious actor could register malicious devices to bypass FIDO authentication.


You may apply the relevant fixes to the product based on the public fix(s):


If you are a WSO2 customer with a support subscription, use WSO2 Updates in order to apply the fix.