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The UNIX operating system was developed in a friendly, collaborative environment without any particular predefined objectives. As it entered less friendly environments, expanded its functionality, and became the basis for commercial, infrastructure, and home systems, vulnerabilities in the system affected its robustness and security. This paper presents a brief history of UNIX vulnerabilities, beginning...
The insider threat problem is increasing, both in terms of the number of incidents and their financial impact. To date, solutions have been developed to detect specific instances of insider attacks (e.g., fraud detection) and therefore use very limited information for input. In this paper we describe an architecture for an enterprise-level solution that incorporates data from multiple sources. The...
Updating and patching has become a ubiquitous part of software maintenance, with particular importance to security. It's especially crucial when the systems in question perform vital functions and security compromises might yield drastic consequences. Unfortunately, updates intended to remediate security problems are sometimes incomplete, are flawed, or introduce new vulnerability themselves. The...
As computer technologies become increasingly ubiquitous, so must supporting digital forensics tools and techniques for efficiently and effectively analyzing associated systems' behavior. Live analysis is a logical and challenging step forward in this area and a method that has recently received increased R&D focus. This article describes some live analysis approaches as well as tools and techniques...
The UNIX@@@@ operating system is designed for collaborative work and not for security. Vendors have modified this operating system (in some cases, radically) to provide levels of security acceptable to their customers, but the versions used in supercomputing environments would benefit from enhancements present in so-called secure versions. This paper discusses the need for security in a supercomputing...
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