Quote of the day

"As denial of service and distributed denial of service (DoS/DDoS) attacks become more mainstream, doubling in 2013 compared to 2012, we witnessed some alarming trends. First, attackers are more commonly deploying multi-vulnerability attack campaigns - over 50% of today's attack campaigns deploy 5 or more attack vectors that target every layer of the application infrastructure (network, server and applications). The likelihood of a successful attack increases with the number of attack vectors that are being used. Moreover, multi-vulnerability attacks create confusion and demoralization in the target organization which are important features for the attackers."

-- Data Security Breach

Well, Red Teams have been doing this for a long time: exploiting all possible attack vectors, often at the same time.
This is one of the reasons that a good Red Team assessment is must always be at the forefront of the security planning.