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Update README.md

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santosomar committed Jan 16, 2019
1 parent 34e86d5 commit d0fd618943d6e24234ca194ebea8c1016dab07a7
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  1. +13 −0 buffer_overflow_example/README.md
@@ -29,3 +29,16 @@ int main()
```

The `char buffer[20];` is a really bad idea. The rest will be demonstrated in the course.

You can compile this code or use the already-compiled binary [here](https://github.com/The-Art-of-Hacking/h4cker/raw/master/buffer_overflow_example/vuln_program).

For 32 bit systems you can use [gcc](https://www.gnu.org/software/gcc/) as shown below:
```
gcc vuln.c -o vuln -fno-stack-protector
```
For 64 bit systems

```
gcc vuln.c -o vuln -fno-stack-protector -m32
```
`-fno-stack-protector` disabled the stack protection. Smashing the stack is now allowed. `-m32` made sure that the compiled binary is 32 bit. You may need to install some additional libraries to compile 32 bit binaries on 64 bit machines.

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