Link: https://score.ctf.westerns.tokyo/problems/38 (only for logged in users) Points: 300 Category: forensic, PPC Description The stupid RAID NAS fails after two disks are crashed. Please rescue our exploit source code. Incomplete RAID emulator is attached. defective-raid.7z tl;dr Provided archive contains custom RAID implementation…
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
|
1 2 3 4 5 6 7 8 9 10 11 12 |
$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.…
Link: https://score.ctf.westerns.tokyo/problems/22 (only for logged in users) Points: 100 Category: Misc Description Find the flag. This problem is not image based on steganography. tl;dr Take data from IDAT chunk, decompress it and grep for TWCTF. Solution explanation The first step…
Description Host : pwn2.chal.ctf.westerns.tokyo Port : 16317 Note: To prevent from DoS attacks, output length is limited in 131072 characters. As always our task is to obtain the flag on the remote server and as always we will try to…