Displaying posts tagged: deerstalker

How not to exploit a box redux

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The other day I reread my post about a fake exploit and noticed another string in the shell code that doesn't run. I had a good idea what would happen, but stuck "take a closer look when I've got time" on my mental to do list. Last night I got a message from fellow Cyber security ...

Oct 2011 Cyber Security Challenge cipher

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To coincide with the London Conference on Cyberspace Cyber Security Challenge dropped another cipher puzzle. It all kicked off with a tweet which lead to a page on the Foreign and Commonwealth Office So the big standy outy thing is the image with it's massive binary string across the middle there. Seems like a good place ...

How not to exploit a box

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This week I had the opportunity to sit with a pentester as he conducted a test on one of our clients. I wasn't really sure why he needed someone with him, but management wanted someone there and I wasn't going to miss an opportunity to watch. I didn't want to interfere so I just sat a ...

Fri's Cyber Security Challenge (day 2 of 3)

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Cybersecurity Challenge cipher day two of three, and we are presented with a password protected zip file. Quick look around Ubuntu and we see the only password cracker for zips in the repos is fcrackzip. One quick apt-get latter and we're off! Since we're supposed to break into this we should have a quick blast of ...

Thurs' Cyber Security Challenge Cipher (day 1 of 3)

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*Finally getting round to publishing this after writing it _months_ ago, others are in the pipeline half writen* The first one of three ciphers was aimed at under 18's so should be a gentle ease into the world of cipher puzzling again. We were presented with two wav files. Listening to them we see that they're ...