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DASCTF2022七月赋能赛 MyCanary2
Analyse sub_4012B6() unsigned int sub_4012B6() { int v0; // eax int fd; // [rsp+Ch] [rbp-4h] setbuf(stdin, 0LL); setbuf(stdout, 0LL); setbuf(stderr, 0LL); fd = open("/dev/urandom", 0); if ( fd == -1 ) { printf("can�DASCTF2022七月赋能赛 eyfor
checksec Arch: amd64-64-little RELRO: Partial RELRO Stack: No canary found NX: NX enabled PIE: No PIE (0x400000) File pwn4: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.s