This indicates an attack attempt to exploit a Code Injection Vulnerability in HP Intelligent Management Center.
A remote, authenticated attacker can exploit this vulnerability by sending a request message with a serialized object. Successful exploitation results in the execution of arbitrary code under the context of the SYSTEM user.
HP Intelligent Management Center prior to 7.3 E0703
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.