Cisco Security Advisory – Customers who use the CiscoWorks Wireless LAN Solution Engine (WLSE) may use a conversion utility to convert over to a Cisco Wireless Control System (WCS). This conversion utility creates and uses administrative accounts with default credentials. Because there is no requirement to change these credentials during the conversion process, an attacker may be able to leverage the accounts that have default credentials to take full administrative control of the WCS after the conversion has been completed.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/59998/cisco-sa-20071010-wcs.txt
Source: https://packetstormsecurity.com/files/59998/Cisco-Security-Advisory-20071010-wcs.html