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    An Analysis of Vulnerability Trends

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    Date
    2000-11-13
    Author
    Browne, Hilary K.
    Arbaugh, William A.
    McHugh, John
    Fithen, William
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    Abstract
    We have conducted an empirical study of a number of computer security exploits and determined that the rates at which incidents involving the each exploit are reported to the CERT can be modeled using a common mathematical framework. Data associated with three significant exploits involving vulnerabilities in phf, imap, and bind can all be modeled using the formula C = I + S * sqrt(M) where C is the cumulative count of reported incidents, M is the time since the start of the exploit cycle, and I and S are the regression coefficients determined by analysis of the incident report data. Further analysis of two additional exploits involving vulnerabilities in mountd and statd confirm the model. We believe that the models will aid in predicting the severity of subsequent vulnerability exploitations, based on the rate of early incident reports. (Also cross-referenced as UMIACS-TR-2000-76)
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    http://hdl.handle.net/1903/1112
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    • Technical Reports of the Computer Science Department

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