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Decrypting a password

rdunkle
Level 1
Level 1

Is there anyway to decrypt a password on a 3500 series switch? Since the last time we accessed our switch the enable password was not recorded. We have our config file with the encrypted password.

4 Replies 4

netops01
Level 1
Level 1

If it is just an enable password encrypted by "service password-encryption" command then yes, there are utilities that can decrypt.

If it is enable secret, then no, not that I am aware of.

Ian.

milan.kulik
Level 10
Level 10

Hi,

you can use this link http://www.kazmier.com/computer/cisco-noswing.html , e.g.

But I don't know any way to decrypt enable secure password.

Regards,

Milan

thisisshanky
Level 11
Level 11

If its a type 7 password, you can decrypt using Password decryptor tools available on the net. www.boson.com does give one such decryptor for free. Check for Free tools (downloads) at Boson's website. Download the utility, copy and paste the encrypted string, and you will get back the password in clear text.

Enable secret passwords are hashed by MD5 algorithms, which are irreversible. Hence you cannot decrypt secret passwords.

Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus

paul.matthews
Level 5
Level 5

Do you need to find out the password, or simply get into the switch? If the latter, and you can cope with a few minoutes outcage look for password recovery techniques on CCO.