This indicates an attack attempt against an Information Disclosure vulnerability in HP Intelligent Management Center.
The vulnerability is due to an insufficient input validation error when handling a crafted HTTP request. A remote attacker can exploit this to gain unauthorized access to sensitive information via a crafted HTTP request.
HP IMC Service Operation Management Software Module Prior to 7.0 (E0101)
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Apply the most recent upgrade or patch from the vendor.