This indicates an attack attempt against a Security Bypass Vulnerability in Oracle Identity Manager.
The vulnerability is due to hard coded default credential inside the vulnerable application. A remote attacker can exploit this to authenticate with the application to gain administrator level privileges on the target system.
Oracle Identity Manager 188.8.131.52
Oracle Identity Manager 184.108.40.206
Oracle Identity Manager 220.127.116.11
Privilege Escalation: Remote attackers can leverage their privileges on vulnerable systems.
Apply the most recent upgrade or patch from the vendor.