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Saturday, October 30, 2021

FTP Float Exploiting: [Windows x86] Buffer Overflow [I]

 Hi everyone!,


so far so good,in this post i'm going to explain hot to exploit an RCE over Buffer overflow smash attack type.

The choosen vulnerable software is Float FTP installed over  Windows XP x86 architecture.


The software:


The connection from attacker machine:



Debugger software: Immunity Debugger with mona python plugin





Buffer Overflow exploit Source Code available on my github:



https://github.com/f0ns1/-Exploiting-BufferOverflow/tree/main


Exploit execution:


I promise create a full and deep explaination about how to create the exploit with the following stepts:


- Undesrtand the vulnerability

- Assembler quick introduction: operations/register/stack/heap

- fuzzing

- ciclycal pattern in order to obtain offset

- EIP registry control

- Shell code injection


With best regards!, i hope that you enjoy we keep in touch ;) F0ns1.

  




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