patchelf
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[0x41414141 CTF] BabyheapCTF/WRITEUP 2021. 2. 3. 01:12
Summary 개요 Unsorted bin attack으로 libc address leak Tcache dup으로 __free_hook에 heap 할당 oneshot gadget으로 hook Overwrite Disassembly 디스어셈블리 undefined8 main(void) { int32_t iVar1; undefined8 uVar2; int64_t in_FS_OFFSET; undefined var_dh; int32_t var_ch; int64_t var_8h; var_8h = *(int64_t *)(in_FS_OFFSET + 0x28); ignore_me_init_buffering(); puts("You can never miss the chance to have a baby heap chall..