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Then we enter the key-string, which will include the number 7 for encryption type and the text of the “encrypted” password: Next, we will create our key chain and give it the name of NEW:Ĥ. There are several different tools and websites that have this capability, but there’s an easier way! I don’t even have to leave the router! Thanks to a nifty little feature called the “key chain”, I can reverse these passwords right here, right now!Ģ. So now that I’ve found these Type 7 passwords, I need a way to reverse them. This policy applies to both user accounts and passwords applied to the VTY or Console lines. Due to this, it is never a good idea to use Type 7 passwords.
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Type 7 passwords use a very weak algorithm that can be easily reversed, but the “secret” command utilizes a MD5 hash which is much more secure. The difference between these two storage methods ( password or secret) are the hashing algorithms. Whereas, the second user was created with this command: This is because the first user was created with a command like this: Note that both of these accounts have the same privilege level, but that the passwords are stored differently. The fact that they were using default cisco/cisco credentials made me cry a little inside, but wait, it gets worse… So I’m in the router, reviewing the running config, and I notice something interesting. While working on a recent pen test, I came across a few Cisco routers sitting on an internal network.
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