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. 自力(古天乐饰)与生父(刘兆铭饰)重遇后,本来打算与田宁(蔡少芬饰)长厢斯守,可惜,田宁失忆后,竟决定和志强(郭晋安饰)结婚……蜜蜜是一只活泼可爱,古灵精怪的小猫咪,温柔的妈妈、有趣爱运动的爸爸、还有淘气调皮的弟弟乐乐,他们是快乐的一家人。故事主要围绕蜜蜜的日常生活进行展开。 同时让小朋友了解是爸爸妈妈在生活的点滴中传授经验,让孩子们在爱中懂得分享与感恩,在游戏中学会探索与思考。Blair(莉顿·梅斯特 Leighton Meester 饰)和Serena(布蕾克·莱弗利 Blake Lively 饰)在巴黎度过了一个美好的夏天,正当她决定忘记Chuck(爱德·维斯特维克 Ed Westwick 饰)时,他却在巴黎出现,还带着美貌Eva。纽约上东区,度过一个糜烂夏季的Nate(切斯·克劳福 Chace Crawford 饰)遇到一个叫Juliet(凯蒂·卡西迪 Katie Cassidy 饰)的美丽女人,而她的真正目的却在Serena身上。Blair邂逅了高贵的王子Louis,在努力让自己变成王妃的同时却陷入了与Dan(佩恩·拜德格雷 Penn Badgley 饰)的暧昧不清。而恢复记忆的Chuck也努力挽回与她的关系。这一次,他们又将带来怎样精彩的故事?Gossip Girl依然眷恋着这些上东区的宠儿们。Terror另一边,住在华丽的王都、被人民爱戴着的歌姬·菲妮丝。她虽然作为某位将要继承王位的王子的王妃候补,却在被重重墙壁包围的深宫中孤独度日。一季: 身无所长的英国少女莫莉, 被穷困潦倒的父亲逼婚, 一气之下从军入伍, 当了医护兵, 偶遇被自己称为"灵魂姊妹"的阿富汗小女孩巴希拉, 无意间卷入当地人的习俗冲突中. 又在英俊的上司尉官和一夜情战友间左右为难, 深受煎熬. 最终, 历尽患难的莫莉成长起来, 成为一名合格的战场医护兵, 展开自己的人生新旅程. 第二季: 踌躇满志的医护官莱恩, 大喜之日居然被未婚夫放了鸽子. 两年之后, 好不容易忘却旧事的莱恩赴肯尼亚出任务, 意外被俘. 天意弄人, 谁知赶来搭救的竟是昔日负心人... 第三季: 信念再坚定者也会动摇;纠结不去的各种传统,借机大行其道。或谓“不干预,不刻意,反而成算最大”。