Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) permit packets to pass before the configuration has been loaded, which might allow remote attackers to bypass intended access restrictions by sending network traffic during device startup, aka Bug ID CSCsy86769.
https://exchange.xforce.ibmcloud.com/vulnerabilities/64604
http://www.securitytracker.com/id?1024963
http://www.securityfocus.com/bid/45767
http://www.cisco.com/en/US/docs/security/asa/asa82/release/notes/asarn82.pdf