Addressing Weaknesses in the Domain Name System Protocol

 

 

The Domain Name System (DNS) is a widely implemented distributed database system used throughout the Internet, providing name resolution between host names and Internet Protocol addresses. This thesis describes problems with the DNS and one of its implementations that allow the abuse of name based authentication. This leads to situations where the name resolution process cannot be trusted, and security may be compromised. This thesis outlines the current design and implementation of the DNS. It states the main problem both on a high level and as applied to the DNS in a more concrete fashion. We examine the weaknesses in the DNS and exploit a method to abuse the DNS for system break-ins. We demonstrate these weaknesses by describing the necessary modifications in authoritative DNS data and Domain Name System code. We list experiences gained during experiments with several setups of name servers and trusting hosts in a local area network. [via]
http://homes.cerias.purdue.edu/~spaf/tech-rep...

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Addressing Weaknesses in the Domain Name System Protocol

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