https://blog.omiilgo.com/tags/x86-64/ Recent content in X86-64 on Security Notes Hugo en-us Thu, 11 Mar 2021 10:00:00 +0800 https://blog.omiilgo.com/posts/cpp-vtable-recovery-from-disassembly/ Thu, 11 Mar 2021 10:00:00 +0800 https://blog.omiilgo.com/posts/cpp-vtable-recovery-from-disassembly/ Two-class toy hierarchy, virtual dtor plus two methods. objdump/readelf of the compiler vtable, ctor writing the vptr, virtual call through [x0,#16], gdb print of the slot. https://blog.omiilgo.com/posts/rop-versus-ret2libc-mental-model/ Tue, 09 Feb 2021 14:00:00 +0800 https://blog.omiilgo.com/posts/rop-versus-ret2libc-mental-model/ Mental model plus objdump of a toy: ret2libc is whole-function reuse, ROP is fragment reuse. Classify epilogue rets vs pop;ret vs leave;ret. Overflow crash with RIP=0x4141… — no system("/bin/sh") chain.