used weak, reversible encryption for passwords stored in configuration files. Algorithm: Often based on the DES (Data Encryption Standard) algorithm. The Vulnerability:
: If you have a backup file, you may find passwords hashed but not encrypted
hashcat -m 500 -a 0 huawei_hash.txt rockyou.txt decrypt huawei password cipher
If an audit reveals older configuration files containing legacy cipher formats, they can be decoded using community-vetted Python scripts. These scripts replicate the internal VRP decryption routine using the known, hardcoded global keys extracted from older VRP binaries. An administrator inputs the ciphertext block: %^%#De4B5Bhv=X!K7EU9Qv*YQ1A=Xb7N:yWv#M_#W9a!%^%# Use code with caution.
To prevent unauthorized decryption of configuration files, network administrators should implement the following hardening steps: used weak, reversible encryption for passwords stored in
To regain access to a Huawei switch or router without losing the existing configuration, you must bypass the startup configuration via the physical console port.
Huawei’s Virtual Routing Platform (VRP) has evolved its cryptography across different operating system versions. When you view a configuration file (via display current-configuration ), passwords for local users, BGP peers, RADIUS servers, or VTY lines appear in specific formats depending on the algorithm used. 1. Simple Text (Plaintext Variant) These scripts replicate the internal VRP decryption routine
Modern Huawei configurations utilizing prefixes like $1a$ cannot be decrypted through a direct mathematical reversal. Instead, recovering these passwords requires brute-force or dictionary-based cracking techniques. The Attack Vector
# Simple demo for reversing Huawei Type 7 obfuscation cipher = "07@9%+2%5c%k0%6d%Q" key = [0x0D, 0x2B, 0x3A, 0x4F, 0x5E, 0x6D, 0x7C] # (Full decoder requires the static 52-byte Huawei key table) print("Decoded: [Requires full key table]")
Method 2: High-Performance Brute Force & Dictionary Attacks (For Modern Hashes)