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Active Security Infrastructure

Active Security Infrastructure. Stuart Kenny Trinity College Dublin. Active Security. Building on concepts investigated during CrossGrid project (2002-2005) and Int.Eu.Grid (2006-2008) Existing Grid security activities focused on prevention Authentication, authorization

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Active Security Infrastructure

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  1. Active Security Infrastructure Stuart Kenny Trinity College Dublin

  2. Active Security • Building on concepts investigated during CrossGrid project (2002-2005) and Int.Eu.Grid (2006-2008) • Existing Grid security activities focused on prevention • Authentication, authorization • Active security focused on • Detection • Reaction • 3 components • Security monitoring • Alert Analysis • Control Engine

  3. Active Security Infrastructure

  4. Security Monitoring (Site Level) • Monitors state of security of a site • Reports detected security events to security alert archive • Monitoring performed by ‘R-GMA enabled’ security tools • Snort • Prelude-LML • Rkhunter • Extensible • Easy inclusion of additional tools, e.g., Tripwire

  5. Alert Analysis (Management Level) • Filter and analyse alerts contained in alert archive • Detect patterns that signify attempted attack • Attempts to join alerts into high-level attack scenarios • Output • Correlated high-priority Grid alert • New Grid policy • Define actions to be taken in response to security event • Extensible • Define additional ‘attack scenarios’ and base policies

  6. Control Engine (Site Level) • Input: • Grid policies generated by analysis component • Site Policy Decision Point • Evaluates requests for guidance from service agents • Decision based on applicable policies • Decision contains action to be taken to mitigate risk of possible security incident • Extensible • Provision of service agents or plug-ins Pull

  7. Control Engine (Site Level) • Active Plug-in • Simple plug-in interface • Plug-ins invoked on policy update • Evaluate plug-in request against updated policy set • User defined code handles response and enforces obligations • Grid-Ireland example • Grid4C iptables management endpoint • Dynamic host blocking Push

  8. Grid-Ireland Deployment • Grid-Ireland Gateway • Point-of-presence at 18 institutions • Homogenous set of hardware and software • Centrally managed by Grid Operations Centre (OpsCentre) at TCD • ASI deployment • Security monitoring installed on gateways at 10 of 18 sites • Analysis component hosted at OpsCentre • Continuously monitoring infrastructure since June 2008

  9. Grid-Ireland Deployment

  10. Grid-Ireland Deployment

  11. Analyzer Scenarios: Job Monitoring • Scenario models attack as series of state changes • Models states job passes through once submitted to a site • State changes triggered by published alerts • Prelude LML and PBS scripts • Can be used as basis for ‘higher-level’ scenarios • E.g., job executing restricted command

  12. Analyzer Scenarios: Job Monitoring

  13. Analyzer Scenarios: Job Monitoring

  14. Analyzer Scenarios: Job Monitoring

  15. Future Work • Correlation • Prelude correlation engine • LUA rules based • Messaging • ActiveMQ • Additional scenarios • Control Engine • Implement agents and deploy

  16. Questions?

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