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 Branch Intelligent Management System Software Module (BIMS) prior to 5.2 (E0401)
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Apply the most recent upgrade or patch from the vendor.