owa hijacking through firepass
My security team has decided to stop OWA publishing through our current Microsoft ISA Server because of the following security vulnerability :
We use Exchange 2003 and Microsoft won't patch Exchange 2003 to correct this threat. Today, we have a firepass V6.03 we publish OWA for some peoples and for most people we use ISA 2006.
My question is does the vulnerability can be use with the firepass OWA publishing rule or not ? because it can with ISA and microsoft want us to migrate to UAG Server that can block the threat.
So I have to choose between migrating to UAG server or all the people to firepass if it can block the threat.
please le me know your advices.