人妻精品久久久久中文字幕

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.　少女何洛机灵俏皮但功课欠佳，却不小心夸下海口要考入名校。意气飞扬的学霸章远看似自大高傲，但被何洛的锲而不舍打动，辅导她不断进步。两个人心意渐明，约定报考同一所大学，但阴差阳错，高考令他们分隔两座城市。他们不畏时空距离，满怀憧憬地一起规划未来。高中同班的一众好友，也各自经历成长中的种种磨砺与挑战。高考失利的章远急于证明自己，实现早日与何洛团聚的承诺，却在创业过程中一再受挫。不同的经历和心境让他和何洛产生分歧，相互深爱却渐行渐远。站在人生的岔路口，他们应该如何抉择？数年后事业有成却天各一方，再次重逢时，心中是否还有最初的悸动？一段绵延十年，隔山跨海的眷恋，带你重温青涩时光里的怦然心动，体会追逐梦想的奋力拼搏，回想记忆深处，最初爱过的那个人。　　角色选定他岳父忙悄悄地挤到皇帝身后，跟宰相杜明说了。没理由的，她就是有这个信心。The most disgusting thing in the world is以全新的角度来演绎一个极富知识分子情怀的密码专家的故事，他的潜伏与挣扎，迷惘与痛苦……既有惊险悬疑的情节，更有人性的探索与拷问，是一部有“深度”的谍战剧。抗战时期，国民党密电专家郑云帆破译日军密电陷入困境，得到八路军的帮助而获得重大战果。抗战胜利后，郑研制的“蝴蝶”密码成为国民党的内战利器，郑为之万分悔恨。解放初，郑背弃国民党，却不投向新政权，独隐遁世；特务对郑展开追杀；公安耿建勋等为破获“蝴蝶”密码亦在追查郑踪迹，并由此与特务展开交锋。郑藏匿于市井，许大江、许苗苗父女所代表的民间真情温暖着郑的心灵；红色政权对郑抛下的幼女的人道关怀，使郑倍感愧疚。专政力量、政策感召和人间真情铸成的恢恢天网，使郑云帆无所遁形、遁心，他被彻底征服，举起了双手……