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Hardening COTS software with generic software wrappers

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3 Author(s)
Fraser, T. ; TIS Labs., Network Assoc. Inc., Glenwood, MD, USA ; Badger, L. ; Feldman, M.

Numerous techniques exist to augment the security functionality of commercial off-the-shelf (COTS) applications and operating systems, making them more suitable for use in mission-critical systems. Although individually useful, as a group these techniques present difficulties to system developers because they are not based on a common framework which might simplify integration and promote portability and reuse. The paper presents techniques for developing Generic Software Wrappers-protected, non-bypassable kernel-resident software extensions for augmenting security without modification of COTS source. We describe the key elements of our work: our high-level Wrapper Definition Language (WDL), and our framework for configuring, activating, and managing wrappers. We also discuss code reuse, automatic management of extensions, a framework for system-building through composition, platform-independence, and our experiences with our Solaris and FreeBSD prototypes

Published in:

Security and Privacy, 1999. Proceedings of the 1999 IEEE Symposium on

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