Bug ID 427076: Web Application SSO might fail with user account locked out

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:
11.5.0, 11.4.1 HF2, 11.4.0 HF4, 11.3.0 HF8, 11.2.1 HF10

Opened: Aug 05, 2013
Severity: 3-Major
Related AskF5 Article:


In rare cases, logon to web applications using client-initiated form-based SSO might fail and cause the user account to be locked out in directory service.


Some users may intermittently fail to logon to web applications and have their accounts locked in directory service.


-- WebSSO configured for use on APM virtual server. -- Logon using form-based SSO.



Fix Information

An error no longer occurs during logon to a web application using client initiated form-based SSO.

Behavior Change