Clear it in 3 steps
-
Start the environment
-
Investigate the target
-
Submit the flag
/app/flag.tar.gz is a nested compressed file. Decompress step by step: flag.tar.gz → flag.tar → flag.zip.bz2.gz → flag.zip.bz2 → flag.zip → flag.txt Extract all and get the content of flag.txt. Hint: Use file command to check compression format
Extract tar.gz with tar -xzf
Extract .gz with gzip -d
Extract .bz2 with bzip2 -d
Extract .zip with unzip