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  • CYBER RISK SCORING AND MITIGATION (CRISM)Md Ali Reza Al Amin, Old Dominion University

    Advisor: Dr. Sachin Shetty, Old Dominion University

    HOMELAND SECURITY CHALLENGE

    APPROACH / METHODOLOGY

    OUTCOMES / RESULTS

    CONCLUSION

    ACKNOWLEDGEMENTSThis material is based on work supported by the U.S. Department of Homeland Security under Grant Award Number 2015-ST-061-CIRC01.

    Passive scans to map the computer systems andnetworks.

    Discover vulnerabilities using NetworkVulnerability Tests and extract information usingNational Vulnerability Databases and CommonVulnerability Scoring System.

    Generate Bayesian attack Graphs whichcompose and correlate the vulnerabilities toidentify potential for multi-stage attacks andlikelihood of exploitability.

    Compute cyber risk score for the enterprisesystem.

    Security metrics will play a key role in supporting risk management and mitigation decisionsfor DHS stakeholders.

    Availability of quantitative insights ensure operational resilience and assist in development ofcost-effective mitigation plan.

    Organizations need tools to aid in continuous assessment their cyber resilience capabilities.

    Developed CRISM , a cyber security risk assessment tool for IT and OT sectors. Distills complex threat analysis processes into a single numerical risk score. Provides a detailed, prioritized mitigation plan. Employs an easy-to-use interface and advanced visualization techniques to ensure

    information synthesis. Displays risk scores in a variety of ways, depending on needs. Identifies specific vulnerabilities and potential attack paths. Builds enterprise-wide awareness of risk. Avoids costly security breaches that could cost your company and your customers money

    and time. Applies to any industry, from financial, healthcare, military and beyond.

    Using CRISM , we are able to better understand the causal relationships betweenpreconditions, vulnerability exploitations, and postconditions. By employing CRISM in anetwork it can save tremendous time and manpower in terms of vulnerability detection andmitigation plan. CRISM leveraged the issue of selecting security controls from the large spaceof optimization where efficient selection of security measure is crucial while maintainingnetwork QoS.

    Slide Number 1

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