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Hi All I have a question about setting up user accounts on a Cisco router. I have seen a statement like the following on a Cisco router username cisco privilege 15 secret 5 $1$s4bl$Lb.b/v/HgWKTdfP/h9 However if I try and enter the command 'username privilege 15 secret 5 I get the following error BETER1-3640(config)#username michael privilege 15 secret 5 password ERROR: The secret you entered is not a valid encrypted secret. To enter an UNENCRYPTED secret, do not specify type 5 encryption. When you properly enter an UNENCRYPTED secret, it will be encrypted. Which seems to suggest that I have to enter the password in MD5 encrypted fashion. Is this the case?
If yes, is there some way that you can create a MD5 encrypted password to enter on your router? Best Regards, Michael.
Hi There Cheers for the response and information. As per your posts, I entered 'username michael privilege 15 secret password' and the show run shows 'username michael privilege 15 secret xxx.'
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When I initially seen this I thought that the command entered by who ever configured this router was 'username provilege 15 secret 5 ' (with the 5 after the keyword 'secret') and could not understand why when I tried this command I got the error. However thinking a little more about this and it now makes sense. As if this configuration was being loaded back in from say a tftp server after some problem, then the password is indeed in it's MD5 hashed format, hence the requirement for the number '5' after the word secret. Sap crystal reports for .net framework 4.0.
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Can I just ask if either of you guys are aware of a tool which would generate a MD5 hashed password, suitable to be entered as '. Secret 5 ' or is this not the done thing? Borderlands 2 the great escape. I tried using another Cisco router and taking the MD5 hashed enable secret password and using it in my 'username.' And although the command is accepted without any error, when I try to then log in using this password, I get 'Login invalid'.
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Best Regards, Michael. Hi Mark I don't mean to crack the password. What I mean is, if there is any tool which you could use to GENERATE an MD5 hashed version of a password which a Cisco router would accept and would be usable. Say that you are paranoid about the password being seen by someone looking over your shoulder while you enter it into the router. So you have a tool/application into which you could enter a plain text string and have an MD5 hash password, suitable for use with a Cisco device generated. Of course if the plain text password can be seen while you configure the router, it can be seen as you enter it in to a 3rd party tool/application.
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I was really just curious, as it seems that you can enter an MD5 hashed password if you use the number '5' after the 'secret' keyword. But as I mentioned above, I believe this is purely only used in the case where a routers configuration has to be restored from a backup. Again, thanks for the response and information. Best Regards, Michael. I realized this was answered but I wanted to add to this another solution. In certain versions of 15 ios code if you enter the enable secret unencrypted by default the OS will encrypt it but with a type 4 password which is weaker than a type 5. To fix this you can either upgrade the code to correct the bug or you can manually enter a type 5.
To generate a type 5 password simply: Copy a type 5 password from an IOS platform that does not support type 4. Log on to a cisco device running a version 12 IOS. Enter your command 'enable secret ' Then show run in enable secret copy and paste the output into your 15 code device that exhibits this bug. This article helped me find the answer for this. It explains it in great detail.
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