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Disclaimer: I am asking this question solely for educational purposes.
I am trying to chain some function calls using return-oriented programming, exploiting a vulnerable binary which uses strcpy(). One of these function cal… Continue reading Return-oriented programming: Address of system() contains NULL byte
I am trying to bypass DEP in x86_64 (64 bit – ASLR OFF). I have my own vulnerable code and I have also written an exploit code with a basic ROP to jump into system() with parameter “/bin/sh”, but it is not working I don’t kno… Continue reading Why ret2libc is not working in the below code on x86_64?
I’m trying to exploit a strcpy() buffer overflow vulnerability to test ROP attack. I found a very useful gadget at address 0x0000f26c so I am obliged to insert null bytes to the stack to override the return address of the vul… Continue reading Dealing with NULL byte (0x00) in offsets
I’m doing basic exploitation test on a simple program with fiew lines of code. I intend to exploit a buffer overflow vulnerability to perform a ROP attack.
To gather the available gadgets I use ROPgadget tool.
I found a very … Continue reading ROP Attack :Force the program to manipulate an instruction as a gadget
In Linux, with ASLR enabled, is there a range of addresses where user stack address lies? What about heap, instruction addresses(text section)? In general, is it possible to look at an address and tell if it is for data or for code?
I am … Continue reading Stack location range on linux for user process
How exactly do the exploit pieces connect when bypassing ASLR and DEP using ROP?
It seems like there could be a number of ways. E.g. a full ROP based payload or a ROP payload that modifies a memory location to be executable … Continue reading Full ASLR and ROP
GCC 6 has a flag, -mmitigate-rop, which compiles binaries in a way that reduces the number gadgets exploitable by ROP. The GCC documentation explaining this feature is minimal:
-mmitigate-rop
Try to avoid generating cod… Continue reading How does GCC’s -mmitigate-rop work?
IBM Research — Haifa recently developed a solution that acts like a moving target, randomizing files to safeguard against ROP attacks.
The post Anti-ROP: A Moving Target Defense appeared first on Security Intelligence.
Researchers at Endgame are expected at Black Hat to introduce Hardware Assisted Control Flow Integrity (HA-CFI), which leverages features in the micro-architecture of Intel processors for security. Continue reading New Technique Checks Mitigation Bypasses Earlier