![]() This document is not restricted to specific software and hardware versions. There are no specific requirements for this document. AAA can use local, RADIUS, and TACACS+ databases. Note: Cisco recommends that all Cisco IOS devices implement the authentication, authorization, and accounting (AAA) security model. This document explains the security model behind Cisco password encryption, and the security limitations of that encryption. The unexpected concern that this program has caused among Cisco customers has led us to suspect that many customers are relying on Cisco password encryption for more security than it was designed to provide. The program will not decrypt passwords set with the enable secret command. A non-Cisco source has released a program to decrypt user passwords (and other passwords) in Cisco configuration files. ![]()
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December 2022
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