Solution : https://service.sap.com/sap/support/notes/649677 (SAP Service marketplace login required)
Key words :
hkey_local_machine\software\sapportals\user management\configurations\myconfiguration, active user management configuration, portal user management, um configuration tool, opens asecurity hole, install sp5 patch 2, uncheck disregard domain, domain unlessdisregard domain, list ofallowed domains, user defined
Related Notes :
| 663079 | Patch 3 of Support Package 5 for Enterprise Portal 5.0 |
| 448828 | EP 5.0: Central Note for EP-PIN-USM (User Management) |