Secret 5 Password Decrypt: Cisco

| Tool | Speed (MD5) | Best for | Notes | |------|-------------|----------|-------| | | ~8 billion c/sec on 8x GPU | Fast dictionary + rules | Format: $1$<salt>$<hash> | | John the Ripper | ~100M c/sec CPU | Custom wordlists | Has --format=md5crypt | | CiscoType5Decrypt (old) | Slow, broken | Legacy only | Avoid – uses precomputed tables | | Online rainbow tables | Instant (if password known) | Weak/common passwords | Privacy risk – never upload production hashes |

Verdict: Not possible in the cryptographic sense—but “cracking” is very real. 2/5 for decryption, 4/5 for recoverability. 1. What Is a Cisco Type 5 Password? In Cisco IOS, when you configure: cisco secret 5 password decrypt

The device stores it in running-config as: | Tool | Speed (MD5) | Best for

Use Hashcat or John the Ripper, respect legal boundaries, and migrate to Type 8 secrets. What Is a Cisco Type 5 Password