Abstract

Desktop client applications interact with both local and remote resources. This is both a benefit in terms of the rich features desktop clients can provide, but also a security risk. Due to their high connectivity, desktop clients can leave a user's machine vulnerable to viruses, malicious plug-ins, and scripts. Aspect-Oriented Software Development can be used to address security concerns in software in a modular fashion. However, most existing research focuses on the protection of server-side resources. In this paper we introduce an aspect-oriented mechanism, Authority Aspects, to enforce the Principle of Least Privilege on desktop clients. This helps to ensure that legitimate resource access is allowed and illegitimate access is blocked. We present a case study applying our approach on two desktop applications: an RSS feed aggregator and a Web browser.

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