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1.1 KiB
1.1 KiB
6.1.17 pwn SECCONCTF2016 jmper
题目复现
$ file jmper
jmper: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.24, BuildID[sha1]=9fce8ae11b21c03bf2aade96e1d763be668848fa, not stripped
$ checksec -f jmper
RELRO STACK CANARY NX PIE RPATH RUNPATH FORTIFY Fortified Fortifiable FILE
Full RELRO No canary found NX enabled No PIE No RPATH No RUNPATH No 0 4 jmper
$ strings libc-2.19.so | grep "GNU C"
GNU C Library (Ubuntu EGLIBC 2.19-0ubuntu6.9) stable release version 2.19, by Roland McGrath et al.
Compiled by GNU CC version 4.8.4.
64 位动态链接程序，但 Full RELRO 表示我们不能修改 GOT 表，然后还开启了 NX。