Security Issues and Best Practices for Water Facilities

Transcription

1 Security Issues and Best Practices for Water Facilities Standards Certification Jeff Hayes Business Development Manager Beijer Electronics Education & Training Publishing Conferences & Exhibits 2013 ISA Water / Wastewater and Automatic Controls Symposium August 6-8, 2013 Orlando, Florida, USA

2 Jeff Hayes 15 years in product management for computer networking and security companies CISSP since March 2002 President of ISSA Utah Chapter Business Development Manager - Beijer Electronics Beijer is a 31 year old industrial automation firm from Sweden with Americas HQ in Salt Lake City Manufacturer of HMIs, touch-panel PCs, programming software and networking equipment for industrial applications including extreme environmental conditions. 2

3 Outline Premises Targets Closed Loop Corrective Action for Plants Security Policies Risk Analysis Countermeasures Monitor & Manager 3

4 Premises Security for infrastructure facilities is minimized, unfunded, and not part of best practices thinking. Security is not a core competency of most engineering, system integration, construction companies, nor of the operators and IT personal. Serious security incidents have not created ample awareness or panic to create action/funding. Cross-contamination risks of the corporate network domain vs. the process control domain. Safety and availability are jobs #1 and #2. 4

5 Target Is a water/wastewater facility a target? Who would target one? How difficult would it be to conduct surveillance to infiltrate a facility? Are we more secure today than a year ago? Yes, but the bad guys are better equipped and the attack surface is expanding Security is more of a people issue than a technology issue 5

6 Closed Loop Corrective Action for Plant Security Security Policies Monitor & Measure Closed Loop Corrective Action for Plant Security Risk Analysis Countermeasures 6

7 Security Policies Policies are the basis for security design, architecture, implementation, and practices Consider some computer, Internet, physical security and emergency management policies Computer, , anti-virus Internet Passwords Social media and blogging Privacy Pandemic Clean desk Cell phones Concealed weapons Industrial accidents Bomb threats Security Policies 7

8 Security Policies Most water/wastewater facilities have weak policies Documented? Understood? Enforced? If they do exist, do they describe who owns, controls, may access what information and in what manner? delineate sharing vs. least privilege? define separation of duties? include a vulnerability / risk / gap / cost-benefit analysis? Security Policies 8

9 Risk Analysis Risk management components Evaluation and Assessment identify assets and evaluate their properties, characteristics and loss impact Risk Assessment discover threats and vulnerabilities that pose risk to assets Risk Mitigation transferring, eliminating or accepting Internal risks People (employees, contactors, visitors, ex-associates) Processes and procedures Computer systems External risks Geography, weather events, neighbors Terror, war, criminal, social & economical Risk Analysis 9

10 Risk Analysis Data Breach Frequency and costs continue to rise Detection Response Notification Ex-post Root Causes Malicious/Criminal Negligence System Glitch Risk Analysis 10

11 Risk Analysis Network Vulnerabilities Cloud Computing Remote access Protocol Vulnerabilities Ethernet & TCP/IP (no longer security by obscurity) Bottom-line Every security program is a risk program the only value proposition security policies, processes and technologies have is their effect on an organization's loss exposure the frequency and magnitude of loss. Jack Jones, Co-Founder of CXOWARE Risk Analysis 11

12 Security Architecture Properly aligned people, processes, & tools working to protect organizational assets, goals & strategic direction Potential components Account & identity management Access and border control Vulnerabilities & base configurations Privacy & integrity Security monitoring Incident response Disaster recovery User training Classification trusted, untrusted and DMZ Countermeasures 12

13 Vulnerability Assessments Identifying, quantifying, and prioritizing the vulnerabilities in a system Scanning Audit running processes, open ports, system OS details, user accounts, executable & DLL files Security, configuration and compliance audit Patch management Zero-day exploits and responses Mobile device management Monitoring and correlating logs and events Analysis and communication Countermeasures 13

14 Penetration Testing A live test of the effectiveness of security defenses through mimicking the actions of real-life attackers Determining the feasibility of a particular set of attack vectors Identifying vulnerabilities that may be difficult or impossible to detect with automated tools Assessing the impact of successful attacks Assess existing defenses, notification and responses Helps quantify what further investments are required Should include Internal External Social engineering Ethical hacking Countermeasures 14

15 Authentication Services Identity and access management (IAM) Identification, authentication and authorization Single- vs. multi-factor authentication Identity consolidation and single sign-on Passwords Characters, length, change frequency, re-use Initial, lost, re-assigned and forced change One-time passwords Switches and routers VLANs, Access Control Lists Wireless Remote access Countermeasures 15

16 Firewalls A system or combination of systems that enforces a boundary between networks typically a private and a public network; e.g., Internet Trusted, un-trusted and semi-trusted (DMZ) Implementations IP and TCP/UDP port-level rules Stateful / deep-packet inspection Deployments Network-based appliances, server/software, routers, switches, access points Host- & server-based Countermeasures 16

17 Encryption & VPN Encryption Process of taking an unencrypted message (plaintext), applying a mathematical function to it (encryption algorithm with a key) and producing an encrypted message (ciphertext) Data at rest ensuring integrity and privacy Data in motion Secure Virtual Private Network - private communication over a public network IPSec, HTTPS, SSL, SecureShell, etc. protocols Remote access client-to-machine and machine-to-machine Countermeasures 17

18 Mobile Devices & Applications Bring your own device (BYOD) Smartphones & tablets Remote access and management Mobile security controls Authentication & authorization VPN Lost Malware Personal vs. business functions Countermeasures 18

19 Intrusion Detection Act of detecting actions that attempt to compromise the confidentiality, integrity or availability of a resource A burglar alarm for computer networks Types Network-based (NIDS) Host-based (HIDS) Physical IDS Intrusion Prevention Honey Pot Systems Decoy servers or systems setup to gather information regarding an attacker or intruder into your system Countermeasures 19

20 Web Application & Content Control Secure Web applications (PHP, C++, Java,.NET) Authentication & authorization Data validation & handling User and session management Points, time and state issues Error handling Encryption Content Filtering Limitations and enforcement points Legal issues Productivity issues Bandwidth/network issues Countermeasures 20

21 Operating System Hardening To configure a computer or other network device to resist attacks Secure or insecure by default? OS dependent Typical steps Perform initial system install Remove unnecessary software Disable or remove unnecessary usernames, passwords and accounts Disable or remove unnecessary services Apply patches Run Nessus or similar scan Countermeasures 21

22 Physical Security Part of a holistic security posture Based on layered defense design Physical security includes Asset protection Video surveillance and monitoring Employee protection and workplace violence prevention Fraud prevention Loss prevention Investigations & forensics Countermeasures 22

23 User Awareness & Training Knowing and understanding an individual s role in organizational and informational security and acting accordingly Constantly reinforce messaging to change behavior Some success elements Management support Partnering with other departments Creativity & multiple modes Use metrics Scope and timing Role-playing or exercises Countermeasures 23

24 Monitor & Measure Physical security monitoring Information vulnerability monitoring & action plans Security devices and software End systems and servers Network equipment Business Continuity Planning / Disaster Recovery Planning Threat & risk analysis Business impact analysis Monitor & Measure 24

25 Monitor & Measure Security Incident Response The complete response set of an organization to a disaster or other abnormal event Security information and event management Incident & data breach responses Secure critical evidence to support investigation/litigation Defend against internal and external exposure Determine the source, scope, and sensitivity of a data loss Identify your legal and regulatory obligations Retain customers and opportunities Apply processes for future prevention Monitor & Measure 25

26 Conclusions Infrastructure facilities are targets Cybersecurity is essential Create a reasonable security posture Policies Risk Analysis Countermeasures Monitor & Manage Monitor & Measure Security Policies Closed Loop Corrective Action for Plant Security Risk Analysis Countermeasures 26

27 Questions? Standards Certification Jeff Hayes Education & Training Publishing Conferences & Exhibits