Payment multiple functions do not check the caller

Lines of code Vulnerability details Impact Multiple functions in the Payment contract do not check the caller, for example, an attacker can directly call refundETH to transfer assets in the contract function refundETH external payable //@audit if addressthis.balance 0...

ASB-A-206492634

imsex is a vendor system service used to manage VoLTE in unisoc devices，But it does not verify the caller's permissions，so that normal apps No phone permissions can obtain some VoLTE sensitive information and manage VoLTE calls...