You could find a stack buffer overflow bug, use it to overwrite the current call frame's return address on the stack, wait for the exploited function to reach its end and return, thus gaining control over the instruction pointer (IP), which you could point back at instructions you put in...
After a thorough explanation of buffer overflows and their functionality, there are two main defense mechanisms that will be discussed in this blog: a stack canary and an Address Space Layout Randomization (ASLR). This blog will take a deeper look into these defense mechanisms, which are used ...
However, these tools both require the active involvement of the developer, meaning not all programs use them. Systemic protections that strive to make buffer overflows less dangerous when they do occur can protect a much greater variety of software. In recognition of this, operating system and co...
I manage to do this with a python script, I run the program in gdb and specify 500 A's to be printed, this seems to work as I then inspect the registers and the instruction pointer is 0x41414141 meaning it's overwritten it with 'A's ...
Buffer overflow Return Oriented ProgrammingKernel Level Rootkits are malwares that can be installed and hidden on a user's computer without revealing their existence. The goal of all rootkits is to carry out malicious execution while being hidden as long as possible on the user's system. We ...
The property you are looking for is called "memory safety", meaning that all memory access is well-typed and within bounds. Most high-level programming languages are specified to provide memory safety. Failure to live up to this promise would be a bug in the language implementation. Obviously...
Discover the impact of buffer overflow in cyber security. Explore various types and their potential consequences on system security.
main()/read_str()：当ind_EOF被解引用时，int pat_len = read_str(MAX_PATTERN_LEN, pat, &is...
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although any methods and materials similar or equivalent to those described herein can also be used in the pra...
Improved buffer overflow protection for a computer function call stack is provided by placing a predetermined ShadowKEY value on a function's call stack frame and copying the ShadowKEY, a caller EBP,