This indicates an attack attempt against an Arbitrary File Read and File Upload vulnerability in Cisco UCS Central Software.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application while handling maliciously crafted requests. A remote attacker can exploit this to execute arbitrary code within context of the affected application via a crafted request.
Cisco UCS Central Software 1.3(0.99) and ealier
System Compromise: Remote attackers can execute arbitrary code in the context of the affected user
Apply the most recent upgrade or patch from the vendor.