Management of Security Information and Events in Future Internet

Transcription

1 Management of Security Information and Events in Future Internet Who? Andrew Hutchison 1 Roland Rieke 2 From? 1 T-Systems South Africa 2 Fraunhofer Institute for Secure Information Technology SIT When? CS-GA 2011

2 Overview Changes and developments Vision Challenges Solutions and implied RTD needs Management of Security Information and Events (SIEM) in Future Internet (FI) New opportunities & new risks Security, resilience, privacy Current and future research

3 Security Information and Event Management Systems Product oriented view SIEM technology provides real-time analysis of security alerts generated by network hardware and applications. SIEM solutions come as software, appliances or managed services, and are also used to log security data and generate reports for compliance purposes. (Wikipedia, May 2011)

4 Systems Come in Threes!... a judgemental system, is involved in determining whether any particular activity (or inactivity) of a system in a given environment constitutes or would constitute - from its viewpoint - a failure. (Brian Randell, IFIP WG 10.4, Guadeloupe, 2007) judgemental system system environment

5 Changes and developments Future Internet (FI) is driving a complete re-think of the paradigm whereby organisations deploy and manage their own services and infrastructure *National Institute of Standards and Technology (NIST) Service Models Deployment Models customers Cloud applications SaaS Cloud platforms PaaS Public Clouds: Resources and Services from the Internet App Hybrid Clouds: The best of both worlds Private Clouds: Resources and Community services from secure Clouds: sources Platfor groups Characteristics m * self services access Infrastructu Rapid elasticity service re Source: T-Systems Fro special interest Cloud infrastructures Broad IaaS On demand network Services get outsourced into clouds Measured Resource pooling Infrastructures evolve hybrid - real & virtual & spread across administrative domains and physical sites

6 Changes and developments Cyber-physical Systems of Systems (SoS) get connected to the Internet Smart Grid IoT Car-to-X Use of meshed wireless communication structures > physical actuators get in reach of attackers Source: MASSIF project (Epsilon)

7 Vision Services & infrastructure in clouds leads to deployment of SIEM in clouds Internet Cloud Mail Content Management: SOC e.g. Anti-Virus, Anti-Spam Router Mail Relay Firewall & IPS Internet Gateway Firewall & IPS Firewall & IPS Internet Gateway Router Remote Proxy Server Internet Content Authentication Management: Server e.g. URL Filtering Security Operations Centre Monitoring Event Vulnerability Correlator Analysis Local Authentication Server Security Update Repository HIPS Anti-Virus Anti-Spyware Disk Encryption Campus/Remote Site Firewall & Firewall & IPS Identity IPS Servers Mail Server Management Site Router Data Centre Router HIPS Security Anti-Virus Management Anti-Virus Anti-Spam Anti-Spyware Data Centre Source: T-Systems Managed SIEM Today, multiple sources are collected centrally within the realm of the provider organisation

8 Vision Services & infrastructure in clouds leads to deployment of SIEM in clouds Source: T-Systems Future SIEM Scalable, inter-organisational, cross-level

9 Vision New opportunities Inter-organisational analyses are possible Adaptive countermeasures SaaS PaaS IaaS and new Risks Privacy and integrity of the events of any particular company Virtualisation layers introduce new vulnerabilities IoT enables new remote attacks against critical services & infrastructures

10 Vision New opportunities Inter-organisational analyses are possible Adaptive countermeasures SaaS PaaS IaaS and new Risks Privacy and integrity of the events of any particular company Virtualisation layers introduce new vulnerabilities IoT enables new remote attacks against critical services & infrastructures

11 Vision New SIEM deployment entails different thinking about the revenue model Source: T-Systems

12 Challenges Security, resilience, privacy Security for cloud applications & service infrastructures Intrusion tolerance, self-protection and self-healing QoS guarantees to ensure reliable and timeous arrival of security event information from the sensors The debate on Internet net-neutrality could also refer here since there could be a case for expediting control traffic such as SIEM event feeds New cryptographic techniques enabling processing of data in a privacy-preserving manner

13 Challenges High-level situational security awareness Application Attacker SaaS PaaS IaaS SIEM reasoning Resource Provide cross-layer, cross-domain security information given that the cloud hides technical delivery of the service from the SIEM provider (typically increasing for higher level services) SIEM needs limited transparency

14 Challenges High-level situational security awareness Application Attacker SaaS PaaS IaaS SIEM reasoning Resource Provide cross-layer, cross-domain security information given that the cloud hides technical delivery of the service from the SIEM provider (typically increasing for higher level services) SIEM needs limited transparency

15 Challenges Adaptive response Security Event Abstraction Process Model Attack Model Predictive analysis of upcoming security problems given that customers have no insights on risk mitigation mechanisms of cloud providers and overall status Anticipatory impact analysis & decision support Technical but also legal challenges

16 Solutions and implied RTD needs Resilient, trust-enabling SIEM architecture Unforgeability provisions Authenticated component event reporting Information flow defense Trustworthy event collection Trusted collection of security-relevant data from highly heterogeneous trusted networked devices (IoT) Resilient Internet-based backbone communication

17 Solutions and implied RTD needs Scalable security situation assessment Service Infrastructure SOI Events Network Devices Service Infrastructure SOI Logs Authentication Devices Authentication Events Security Devices Network Events Security Events Event Collection Event Processing Engine Event Correlation Languages External Language Events Internal Language Events Alarms Scalable distribution of acquisition & parallel processing Seamless function splitting core engines/edge collectors Parallel data streaming to SIEM in clouds Multi-level, multi-domain security event processing

18 Solutions and implied RTD needs Cross-layer reasoning & mitigation Predictive Alerts Countermeasure Evaluation Process Simulation Engine Attack Simulation Engine Multi-level security event modelling aims at a holistic solution to protect service infrastructures of FI Predictive security monitoring enables to fight attacks proactively by predicting their future actions Adaptive configuration of policies & countermeasures

19 A platform around which these thoughts are crystallizing! Multi-domain parallel-running processes Olympic Games Highly-scalable, dependable and multi-level event collection Predictive security analysis Multi-level security event modeling Alert and reaction generation Trustworthy event collection Actions and Countermeasures Languages Mobile money transfer service EVENTS POLICIES RELATIONS REACTIONS Security analysis and notification CI Process Control (Dam) Multi-level event correlation Process and attack simulation Resilient framework architecture Security-aware processes Managed Enterprise Service Infrastructures Event and Information Collection Event, Process Models and Attack Models Scenarios Prototypes Resilient event processing and integration Advanced SIEM Framework

20 Conclusions Changes and developments Vision Challenges Solutions and implied RTD needs FI is driving a complete re-think of the paradigm whereby organisations deploy and manage their own services and infrastructure Cyber-physical SoS get connected to the Internet Services & infrastructure in clouds leads to deployment of SIEM in clouds New opportunities and revenue models & new risks Security, resilience, privacy High-level situational security awareness Adaptive response Resilient, trust-enabling SIEM architecture Scalable security situation assessment Cross-layer reasoning & mitigation judgemental system system environment

21 Landscape of European Security Projects Source: Frances Cleary (EFFECTS+ project)