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First broadcast time: 18:00Figure 1 is an example of a JOP attack. In this example, the attacker's aim is to execute a system call "int 0x80" to open a new command line window. To do this, an attacker needs to modify the contents of the eax register to "0x0000000b" and the ebx register to the string "/bin/sh" before "int 0x80" is called, and the ecx and edx registers must point to the value "0x00000000". Suppose the value "0x0000000" and the string "/bin/sh" can be found in memory when the program is running. An attacker needs to construct the value "0x0000000b" himself. However, for the value "0x0000000b", when an attacker saves data to the stack through a buffer overflow, the "0x00" byte will trigger the system to terminate the read operation. This example specifically describes how the attacker uses the existing code snippet in the program to modify the value of val pushed into the stack by the attacker step by step from "0xffffff0b" to the value required by the system call "0x0000000b", thus implementing JOP attack. The following are the detailed steps of the process.The damage mechanism of romance is divided into five levels.According to hearthstone legend, when followers attack each other, they use attack power and health to compare them.与此同时，一个藏有邪恶力量的不明飞行物正以极高的速度接近地球，它所带来的外星人加莱克萨哈（瑞恩·威尔森 Rainn Wilson 配音）扬言要摧毁地球，毁灭人类。人类奋起反抗，但是他们的武器在加莱克萨哈面前全部败下阵来。地球危在旦夕，人们把命运寄托在了苏珊及其怪物朋友的身上……咱们去陈家……大苞谷耍赖道：不成。