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CTF-All-In-One/doc/6.1.22_pwn_bctf2016_bcloud.md
firmianay ec5de95c15 add 6.1.21 6.1.22
2018-04-30 23:45:54 +08:00

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6.1.22 pwn BCTF2016 bcloud

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题目复现

$ file bcloud 
bcloud: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, for GNU/Linux 2.6.24, BuildID[sha1]=96a3843007b1e982e7fa82fbd2e1f2cc598ee04e, stripped
$ checksec -f bcloud
RELRO           STACK CANARY      NX            PIE             RPATH      RUNPATH      FORTIFY Fortified Fortifiable  FILE
Partial RELRO   Canary found      NX enabled    No PIE          No RPATH   No RUNPATH   Yes     0               4       bcloud
$ strings libc-2.19.so | grep "GNU C"
GNU C Library (Ubuntu EGLIBC 2.19-0ubuntu6.7) stable release version 2.19, by Roland McGrath et al.
Compiled by GNU CC version 4.8.2.

题目解析

漏洞利用

参考资料