欧美性爱小说

Figure 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.　　组织成员多年前已南下香港，亦融入香港社会。某日，七金刚当年得师傅从中国来香港造访七人，要求他们参与一件中日交易事件，目的为夺取两张电脑软件。 　　电影取材自麦炳荣和凤凰女的粤剧戏宝《凤阁恩仇未了情》。所有人的目光都投向堂下跪着的黑少年。《Cross》讲述怀着复仇之心进入了监狱医务室的天才医生姜仁奎与阻止其杀人的医生高正勋在生死岔路口发生的故事。. interpret (new Context (9, 2)), 8));水源，道路，安全等诸多方面，长安城绝对是绝佳的。