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0x41 - weekly exploitation matters - Shellcode and frameworks
Sun, 03/28/2010 - 13:50 | wishi
A non Un-Shakespearian matter
There're mainly two things I wanted to write about regarding Shellcode. However my time is limited... and therefore I kept it short and simple this time.
The two things this mainly is about are:
- dnscat
- (lesser known) Shellcode tools
If your exploit is a rocket, it targets the vulnerable entry point, and the rocket's load is the Shellcode. Normally, when it comes to memory corruptions due exploitation attempts, the program flow alteration directs the EIP into this (pay)load. So instead of crashing your program continues doing what you wanted it to do.
At the point where the EIP doesn't get NOPs e. g. it expects carefully formated instructions (read: Shellcode).
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