Tokyo Westerns MMA CTF 2016 interpreter Summary: 64bit ELF befunge-93 interpreter is given. The binary is fortified with everything (CANARY, NX, PIE, FULL-RELRO, no offset2lib in latest kernel). However, there is arbitrary memory R/W bug in 'p', 'g' implementation since there are no boundary checks. Using this bug, I can overwrite atexit at libc and control the RIP. However, the ROP-able stack payloads are injected into memory before .. 더보기 이전 1 ··· 7 8 9 10 11 12 13 ··· 423 다음 목록 더보기