#Cisco ios checker password#

Now the device will ask for login credential on the next attempt of accessing CLI via console line. The word local is telling the device to look up its internal user account database for authentication, which means the device will refer to the list of username we created before. GeekRtr(config)#line con 0Д«y issuing command login above, we told the device to always ask credential to any attempt of accessing the console command line. In this section we will enforce login to the console command line. The userВ account we created beforeВ is basically useless if we donвЂ™t enforce login process.

Applying userВ accounts to console command line

#Cisco ios checker password#

Notice the number вЂњ5вЂќ before the encrypted passphrase in the show running-config output above - indicates that you have secured your password using type 5 encryption (MD5). Now you can see that by specifying a secret instead of password, it will automatically replace the phrase with random characters combined with random uppercase and lowercase letters, making it totally non-readable to humanвЂ™s eyes. Username admin secret 5 $1$rszA$h4AZMOUECxMMoBg/BVnm// The configuration will be demonstrated in the next example but first we will delete the username and password created earlier: GeekRtr(config)#no username adminДЄnd with this configuration we will re-create username using a secret: GeekRtr(config)#username admin secret letmein123 To use type 5 encryption to secure passwords in Cisco IOS devices we can simply create username followed by a secret instead of password. ItвЂ™s far stronger than encryption type 7 and the only way to reveal the original password is by using brute force (and of course it would take a lot of time and resources just to do that - depends on the original passphrase length). MD5 algorithm is a complex one-way operation and itвЂ™s nearly impossible to reverse the process. It using MD5 algorithm to hide your original passphrase. Instead of type 7, it is highly advised toВ use encryption type 5. However, this encryption is no longer secure in todayвЂ™s network as it can be easily reversed to reveal the original passphrase. Also notice that the number вЂњ0вЂќ before the passphrase has been changed to вЂњ7вЂќ, indicating itВ has been encrypted using type 7 hash. Username admin password 7 10420C0D08121B055D5679ДЄs you can see above, password phrase in the show running-config output has been masked by a random numbers and letters. GeekRtr(config)#do show running-config | include username GeekRtr(config)#service password-encryption With the command service password-encryption, all existing and future added passwords will be automatically encrypted. There are two types of encryption: Encryption type 7 To solve this issue, we can apply encryption to the password and hide the exact passphrase. ItвЂ™s never a good idea to leave your password in a readable condition like this. Also notice the number вЂњ0вЂќ before the passphrase indicates itВ is unencrypted. Notice that your password phrase is explicitly written there. In the show running-config output, the password will be shown as it is: GeekRtr#show running-config | include username When you define a password, it is stored with clear-text format in your running-configuration. Securing your Cisco IOS password with encryption However, there is one major weakness in this configuration and it will be explained in this sub-section below. With above configuration you have successfully created username Cisco IOS device. GeekRtr(config)#username admin password letmein123 The standard command to create user account and password in Cisco IOS is shown in the example below, and it must be executed in global configuration mode.

You want to enable automation to some IOS commands.

You want to restrict some commands to a specific user.

You want to enable virtual terminal line such as telnet or SSH.

You want to secure the console command line.

Manage User Accounts and Passwords in Cisco IOS DevicesД«asically you will need to create at least a user account in your Cisco router or switch if: This article shows how you can manage user accounts and passwords in Cisco IOS devices. In this article, we will go deep on creating users accounts and all its features including privilege, encryption, and automation that we can implement in Cisco IOS devices. Different privilege means different available commands that can be executed per user account. With several different user accounts, you can also set different privilege level for each one of them. Python3 ccat.py config_directory -vlanmap vlmap.txt -output result_html_files_directory -storm_level 40.Managing user AccountsВ and passwords in Cisco IOS Devices is very important task. The list of checks is based on the Cisco Guide to Harden Cisco IOS Devices. This tool is designed to analyze the configuration files of Cisco devices.