2019from public repositories
BitUp 2019
2 challenges with 3 published solutions between them. The writeups for this event were found in public repositories. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised1
The upstream scoreboard did not say, so neither do we.
Hatred
2 official solutionsAlso written up in: sisoma2/CTF-Writeups, sisoma2/CTF-Writeups
Steganography1
Find the payload hidden inside a carrier that looks ordinary. Bit planes, appended data, metadata, and audio spectrograms.
Solve it with:LSB steganography extractorPNG chunk analyzerAudio spectrogram and SSTV decoderZero-width character and text steganography decoderLearn: Steganography
Hide With Stego
1 official solutionAlso written up in: 1r0dm480/CTF-Wr1T3uPs