Crosby-Signed Thesis - Alliance Digital Repository

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IMPACT OF IPV6 TRANSITION MECHANISMS ON THE NETWORK FORENSICS PROCESS A THESIS SUBMITTED ON THE 18TH OF MARCH, 2011 TO THE DEPARTMENT OF INFORMATION TECHNOLOGY OF THE SCHOOL OF COMPUTER & INFORMATION SCIENCES OF REGIS UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS OF MASTER OF SCIENCE IN INFORMATION ASSURANCE BY KRIS R. CROSBY Charles Thies, <strong>Thesis</strong> Advisor Daniel M. Likarish Douglas I. Hart
IMPACT OF IPV6 TRANSITION MECHANISMS ON THE NETWORK FORENSIC i Abstract IPv6 based attack vectors will become more common within traditional IPv4 networks as attackers recognize the opportunity to exploit an unmonitored path into the network. Previous research addressed IPv6 security, architecture, and implementations; however, only Nikkel (2007) has presented a basic investigation framework to address this gap. This study developed a methodology for investigating and analyzing transitional networks. The active research methodology was employed to evaluate the IPv6 transition mechanisms, operating systems, and attack vectors in a process structured around the reconnaissance, exploitation, reinforcement, consolidation and pillage phases of a typical network attack. The research environment consisted of local and remote virtual networks with Windows, Linux, FreeBSD, and Solaris UNIX nodes that were configured to communicate using the 6to4, Teredo, intra-site automatic tunnel addressing protocol (ISATAP), and Tunnel-Broker IPv6 transition mechanisms. Observations during the research process generated four primary conclusions. First, the addressing schemes and forensic properties of the transition mechanisms facilitated a methodological approach to investigating physical nodes, analyzing network traces, sourcing addresses, correlating events, and identifying threats. Second, IPv6 traffic existed when IPv6 packets were not observed in a network trace. Third, the transition mechanisms significantly increased the number of packet source addresses representing a single node. Finally, global IPv6 addresses were automatically configured that exposed a node to external attacks. While these contributions begin to address deficiencies in the research, there remains a need to unify the academic, practitioner, and legal communities under a common process that builds a scientific foundation for the network forensic discipline.
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Crosby-Signed Thesis - Alliance Digital Repository

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