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Chapter IV Fire Protection Technical Service Activities我可以肯定，《寻秦记》必定开创一个时代。Group B is the same as group A;Once again, the current boss asked me to report on the user's operation plan. I thought to myself, do you only listen to the user's operation? There are six businesses in the whole operation.Article 31 [If the circumstances are especially serious] Under any of the following circumstances, the medical security administrative department shall order the medical security agencies to cancel the medical insurance designated service agreement, cancel the medical (drug) division service qualification, and no longer have the qualification to apply for medical insurance designated service, thus causing losses to the medical security fund, shall be ordered to return to the medical security fund and impose a fine of five times the illegal amount:JAVA_HOMEWe know that in x64, the first six parameters of the function are stored in RDI, RSI, RDX, RCX, R8 and R9 registers in turn. If there are more parameters, they will be stored on the stack. Therefore, in order for the computer to run the commands we want, we need to find a way to put the address of "/bin/sh" into RDI so that the machine can execute the system function. After carefully examining the linux function stack structure, we can find that we can use RAX register to put the system () address into RAX, then look for code fragments with JMP rax to make use of, and at the same time use RDI register to pass the parameter "/bin/sh" to finally achieve the attack purpose.