reverseProeasy

spbctf_3_x86_64

spbctf

Task: ELF64 binary encodes strings using iterative swap operations with decreasing step sizes. Solution: Reverse the swap algorithm by applying same operations in reverse order (increasing steps 2-10).

$ ls tags/ techniques/

elf64 permutation not_stripped shuffle string_encoding swap_operations

static_analysisshuffle_algorithm_reversalswap_operation_analysisobjdump_disassembly

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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