This indicates an attack attempt against an arbitrary File Upload vulnerability in EMC Connectrix Manager Converged Network Edition.
The vulnerability is due to insufficient input validation in the application when handling an unauthenticated file upload. It allows a remote attacker to upload an arbitrary file onto vulnerable systems.
EMC Connectrix Manager Converged Network Edition 12.0.3 and prior
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.