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Tag: ‘buffer overflow’

Digital Whisper Magazine issue 11

Wrote an article named : “Buffer Overflows 101”  which was published today on the Israeli  Security Magazine “Digital Whisper” issue 11. The article is in the Hebrew language and covers the basics of buffer overflows,fuzzing,olly basics,writing a metasploit modules and more… The article has a companion tar.gz file which includes the source code of the vulnerable server (Which was […]

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How strong is your fu for charity – iVuln Writeup

On June 19th 2010 I attended the Offensive Security “How strong is your fu for charity” challenge , The objectives were to pawn 5 machines in 48 hours time frame. After some enumeration and rumors on the IRC channel it became clear to me that the easiest machine to pawn was the 192.168.x.200 (named iVuln),  a […]

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Manual Egghunter/Shellcode Encoding using Python

You are probably wondering what this post is all about, well….it’s about manually encoding egghunter shellcode why would you want to manually encode the shellcode if you have built in encoders in the metasploit framework ? Before we begin have a look at the following exploit by muts : HP OpenView NNM 7.5.1 OVAS.exe SEH […]

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Exploit DEV Tools – Finding bad characters

Finding bad characters while developing an exploit can sometimes be an exhausting task The following tools are very useful when dealing with bad characters Tools: * Rename files extension to .pl Using generatecodes.pl : This script generates a c style buffer of all characters from 0 to 255, except those specified in a comma seperated […]

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