缓冲区溢出攻击的分析与防范

Buffer Overflow Attack Analysis and Protection

缓冲区溢出攻击成为黑客攻击技术中最广泛、最危险的一种攻击手段。文章给出了缓冲区溢出的原理,结合具体实例分析了缓冲区溢出攻击的方法,从程序编写、堆栈搬移、返回地址检测以及端口关闭等多个角度对防止缓冲区溢出攻击进行了分析。

Buffer overflow attack has become a huge safety threat. This paper first describes the principles of buffer overflow, then analyzes the process of buffer overflow attack with an actual example. At last, it presents some methods which include programming, stack pointer value modifying, return address detecting and port closing to prevent this kind of attack,