1. Microcorruption: Santa Cruz

    Wed 10 May 2023

    The Scenario

    Having touched down in Johannesburg, I am greeted by revision b.04 of the Lockitall LockIT Pro; coupled with an HSM-1 module, the manual states this version of the firmware "rejects passwords which are too long". Somehow I don't have high hopes for their efforts - but that's not …

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  2. Microcorruption: Johannesburg

    Wed 10 May 2023

    The Scenario

    Having touched down in Johannesburg, I am greeted by revision b.04 of the Lockitall LockIT Pro; coupled with an HSM-1 module, the manual states this version of the firmware "rejects passwords which are too long". Somehow I don't have high hopes for their efforts - but that's not …

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  3. Microcorruption: Montevideo

    Thu 04 May 2023

    I was kinda let down by the difficulty of Whitehorse compared to its predecessor - sure the underlying vulnerability in Reykjavik was also similar to a previous challenge, but the twist forcing the loss of the automatic disassembly made it hit different. But the time for reminiscing is later - the time …

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  4. Microcorruption: Whitehorse

    Wed 03 May 2023

    Reykjavik was the first challenge that was a stumper for a decent amount of time, so I was looking forward to see how things could get more interesting as I touch down in our neighbor to the north.

    The Scenario

    The manual for this exercise informed me I was up …

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  5. Microcorruption: Reykjavik

    Wed 03 May 2023

    After my first Real Hacker Moment(TM) in Cusco, I was excited to see what Iceland had in store.

    The Scenario

    The manual for this exercise informed me I was up against hardware version A and software revision 2 or 3. There was no HSM I'd have to consider here …

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  6. Microcorruption: Cusco

    Wed 03 May 2023

    The Scenario

    The exercise informed me I was up against hardware version B, but now running software revision 2. I still had a LockIT Pro HSM-1 to contend with (but more likely bypass entirely), but by this point I was fairly confident in what I expected from the firmware.

    Understanding …

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  7. Microcorruption: Hanoi

    Mon 01 May 2023

    After cleaning up in Sydney, I touched down in Hanoi to face my greatest challenge yet: a bit of actual challenge.

    The Scenario

    The manual for the Lockitall LockIT Pro of this level is different, letting me know I'm up against hardware version B, software revision 1 - now featuring a …

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  8. Microcorruption: Sydney

    Mon 01 May 2023

    My jaunt to New Orleans was easy enough, but as I said at the time things will only get harder and I was in the mood for a challenge when I made my way down under.

    The Scenario

    Upon opening the exercise I am once again presented with the manual …

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  9. Microcorruption: New Orleans

    Mon 01 May 2023

    Preamble

    Way way back in the before times, I started this online reverse engineering/binary exploitation CTF called Microcorruption, but never finished it and ultimately forgot about it. But no longer - I have decided to return to Microcorruption in the hopes of conquering it and writing up my solutions in …

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  10. Four Cores Are Better Than One

    Wed 29 March 2023

    Occasionally my mind regains the ability to recall something from more than two weeks in the past, the latest item being a blog post I read on the relative power of shell parallelization. Recently I found myself dreading an enormously parallelizable task and decided in lieu of spending 45 seconds …

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