Multiple buffer overflows in the ServerProtect service (SpntSvc.exe) in Trend Micro ServerProtect for Windows before 5.58 Security Patch 4 allow remote attackers to execute arbitrary code via certain RPC requests to certain TCP ports that are processed by the (1) RPCFN_ENG_NewManualScan, (2) RPCFN_ENG_TimedNewManualScan, and (3) RPCFN_SetComputerName functions in (a) StRpcSrv.dll; the (4) RPCFN_CMON_SetSvcImpersonateUser and (5) RPCFN_OldCMON_SetSvcImpersonateUser functions in (b) Stcommon.dll; the (6) RPCFN_ENG_TakeActionOnAFile and (7) RPCFN_ENG_AddTaskExportLogItem functions in (c) Eng50.dll; the (8) NTF_SetPagerNotifyConfig function in (d) Notification.dll; or the (9) RPCFN_CopyAUSrc function in the (e) ServerProtect Agent service.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.