Recommended Practice for Securing Control System Modems.

Davidson, J. R. ; Wright, J. L.

Technical Information Center Oak Ridge Tennessee

关键词: Information security;    Control systems;    Internet;    Computer networks;    Modems;   

RP-ID  :  DE2008924510

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This paper addresses an often overlooked backdoor into critical infrastructure control systems created by modem connections. A modem's connection to the public telephone system is similar to a corporate network connection to the Internet. By tracing typical attack paths into the system, this paper provides the reader with an analysis of the problem and then guides the reader through methods to evaluate existing modem security. Following the analysis, a series of methods for securing modems is provided. These methods are correlated to well-known networking security methods.