2021from public repositories
Dubna CTF Quals 2021
3 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 liveForensics1
Recover something from a file, a capture, or a disk image - often from a part of it the format says is unused.
Solve it with:File type identifier by magic bytesMagic byte and file signature tablePCAP analyzer for CTF network forensicsEXIF metadata viewerLearn: File forensics and carvingLearn: Network forensics
Incident
1 official solutionAlso written up in: Panda-Lewandowski/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
Also written up in: Panda-Lewandowski/Writeups
OSINT1
Answer a question about the real world from public sources. The work is pivoting between identifiers, not exploiting anything.
Yet Another Bot
1 official solutionAlso written up in: Panda-Lewandowski/Writeups