Video: Recent advances in IPv6 security
Posted on 08 October 2013.
There are a number of factors that make the IPv6 protocol suite interesting from a security standpoint. Firstly, being a new technology, technical personnel has much less confidence with the IPv6 protocols than with their IPv4 counterpart, and thus it is more likely that the security implications of the protocols be overlooked when the protocols are deployed.

Secondly, IPv6 implementations are much less mature than their IPv4 counterparts, and thus it is very likely that a number of vulnerabilities will be discovered in them before their robustness matches that of the existing IPv4 implementations.

Thirdly, security products such as firewalls and NIDS's (Network Intrusion Detection Systems) usually have less support for the IPv6 protocols than for their IPv4 counterparts, either in terms of features or in terms of performance.

Fourthly, the security implications of IPv6 transition/co-existence technologies on existing IPv4 networks are usually overlooked, potentially enabling attackers to leverage these technologies to circumvent IPv4 security measures in unexpected ways.

During the last few years, the UK CPNI (Centre for the Protection of National Infrastructure) carried out the first comprehensive security assessment of the Internet Protocol version 6 (IPv6) and related technologies (such as transition/co-existence mechanisms). The result of the project is a series of documents that provide advice both to programmers implementing the IPv6 protocol suite and to network engineers and security administrators deploying or operating the protocols. Part of the results of the project have been recently published, leading to a number of improvements in many IPv6 implementations, and in the protocol specifications themselves.

In this video from BruCON, Fernando Gont will discuss the results of the aforementioned project, introducing the attendees to the "state of the art" in IPv6 security, and providing advice on how to deploy the IPv6 protocols securely. Gont will also discusss recent advances in IPv6 security areas such as Denial of Service attacks, firewall circumvention, network reconnaissance, and First-Hop security, and will describe other IPv6 security areas in which further work is needed.

Finally, he will describe some vulnerabilities found in popular IPv6 implementations, such as NDbased Denial of Service attacks, and vulnerabilities arising from the use of predictable IPv6 Fragment Identification or Flow Label values.


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