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991 B
991 B
6.1.22 pwn BCTF2016 bcloud
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.