Link: https://score.ctf.westerns.tokyo/problems/5 (only for logged in users) Points: 50 Category: forensic, warmup Description Today, our 3-disk NAS has failed. Please recover flag. deadnas.7z Hint 1: The NAS used RAID. Hint 2: RAID-5 Solution
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$file disk* disk0: DOS/MBR boot sector, code offset 0x3c+2, OEM-ID "mkfs.fat", sectors/cluster 4, root entries 512, sectors 2048 (volumes <=32 MB) , Media descriptor 0xf8, sectors/FAT 2, sectors/track 32, heads 64, reserved 0x1, serial number 0x867314a9, unlabeled, FAT (12 bit) disk1: ASCII text disk2: data $ ls -lh 512K disk0 12 disk1 512K disk2 $ cat disk1 crashed :-( |
From above output we know that disk1 is missing.…
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