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6.1.26 pwn 34C3CTF2017 300
题目复现
$ file 300
300: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=5f43b102f0fe3f3dd770637f1d244384f6b2a1c9, not stripped
$ checksec -f 300
RELRO STACK CANARY NX PIE RPATH RUNPATH FORTIFY Fortified Fortifiable FILE
Full RELRO Canary found NX enabled PIE enabled No RPATH No RUNPATH Yes 0 2 300
$ strings libc.so.6 | grep "GNU C"
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.
64 位程序 ，开启了 canary、NX 和 PIE，默认开启 ASLR。