Cisco Security Advisory: Cisco Catalyst software permits unauthorized access to the enable mode in the 7.5(1) release. Once initial access is granted, access can be obtained for the higher level “enable” mode without a password. This
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/31057/cisco-pass.txt
Source: https://packetstormsecurity.com/files/31057/cisco-pass.txt.html