2018-06-04 19:29:42 +07:00
|
|
|
# 6.1.30 pwn HITCONCTF2017 Ghost_in_the_heap
|
|
|
|
|
|
|
|
- [题目复现](#题目复现)
|
|
|
|
- [题目解析](#题目解析)
|
|
|
|
- [漏洞利用](#漏洞利用)
|
|
|
|
- [参考资料](#参考资料)
|
|
|
|
|
|
|
|
[下载文件](../src/writeup/6.1.30_pwn_hitconctf2017_ghost_in_the_heap)
|
|
|
|
|
|
|
|
## 题目复现
|
2018-08-05 16:43:10 +07:00
|
|
|
|
|
|
|
```text
|
2018-06-04 19:29:42 +07:00
|
|
|
$ file ghost_in_the_heap
|
|
|
|
ghost_in_the_heap: ELF 64-bit LSB pie executable x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=e862c2118fbad287f5947b95b6f5a5a532fa4a6f, stripped
|
2018-08-05 16:43:10 +07:00
|
|
|
$ checksec -f ghost_in_the_heap
|
2018-06-04 19:29:42 +07:00
|
|
|
RELRO STACK CANARY NX PIE RPATH RUNPATH FORTIFY Fortified Fortifiable FILE
|
|
|
|
Full RELRO Canary found NX enabled PIE enabled No RPATH No RUNPATH Yes 1 2 ghost_in_the_heap
|
2018-08-05 16:43:10 +07:00
|
|
|
$ strings libc-2.24.so | grep "GNU C"
|
2018-06-04 19:29:42 +07:00
|
|
|
GNU C Library (Ubuntu GLIBC 2.24-9ubuntu2.2) stable release version 2.24, by Roland McGrath et al.
|
|
|
|
Compiled by GNU CC version 6.3.0 20170406.
|
|
|
|
```
|
|
|
|
|
2018-08-05 16:43:10 +07:00
|
|
|
64 位程序,保护全开。
|
2018-06-04 19:29:42 +07:00
|
|
|
|
|
|
|
## 题目解析
|
|
|
|
|
|
|
|
## 漏洞利用
|
|
|
|
|
|
|
|
## 参考资料
|
2018-08-05 16:43:10 +07:00
|
|
|
|
|
|
|
- <https://ctftime.org/task/4847>
|