the cisco network admission control system gives an adminitrator the
chance to check the clients, whether they have installed certain
patches / hotfixes. this check is not reliable.
programm version: cisco trust agent 220.127.116.11 (probably all versions)
os: windows xp sp2
vendor informed: yes (got only automated feedback mail)
severity: low - med
vulnerability: the cta checks the patch level only with some registry
queries which can be manipulated
- "Cisco:Host:Hotfix contains KB919007" as posture validation
- the KB919007 hotfix is not installed!
- copy the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows
XP\SP3\KB873339 key and change it into a KB919007 key
- result: client is healty