Transcript Security - Best IT Documents

Security
Information
Management
Leveraging Security Event Information
 Thesis
Managing security event information is a difficult task
Most successful deployments start with a clear understanding
of business needs
 And plans for what to do with the information
Security event information management tools are maturing
and moving from the outside – in
 But there are limitations regarding what the products can accomplish
Leveraging Security Event Information
 Agenda
 Why managing security event information is a difficult task
 Solutions and technology
 Emerging trends
 Recommendations
Leveraging Security Event Information
 Agenda
Why managing security event information is a difficult task
Solutions and technology
Emerging trends
Recommendations
Why Managing Security Event Information is…
 Even finding a name for it is hard!
Security Information Management (SIM)
Security Event Management (SEM)
Security Intelligence Management (SIM)
Enterprise Security Management (ESM)
Defense Information Management/Security Operations
Management (DIM/SOM)
 Just kidding about that last one…
 This is: Security Event Information Management
(SEIM)
Why Managing Security Event Information is…
 “Billions and Billions” of events
Firewalls, IDS,IPS, Anti-Virus,
Databases, Operating Systems,
Content filters
Information overload
 Lack of standards
 Difficult correlation
Making sense of event sequences that appear unrelated
False positives and validation issues
Why Managing Security Event Information is…
 Business Objectives of SEIM –
 Increase overall security posture of an organization
 Turn chaos into order
 Aggregate log file data from disparate sources
 Create holistic security views for compliance reporting
 Identify and track causal relationships in the network
in near real-time
 Build a historical forensic foundation
Why Managing Security Event Information is…
 Things SEIMs can look for
Internal policy compliance on hosts and systems
Track usage throughout the enterprise
 Access to strategic applications and servers
Password change events
Path of a worm or virus through the network
 What does your company want to look for with the
SEIM?
Leveraging Security Event Information
 Agenda
 Why managing security event information is a difficult task
 Solutions and technology
 Emerging trends
 Recommendations
OPERATIONS INTEGRATION
VISUALIZATION / ADMINISTRATION
Security alerts
Reports
Visualization
LONG-TERM STORAGE / AUDIT / INVESTIGATION
raw log
Policies /
compliance rules
Signatures /
attack
patterns
COLLECTION / AGGREGATION / CORRELATION
RESPONSE
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Central /
master
collector
Distribute
d
collectors
INPUTS
Agent
Logging
Identity Management
• Access control
• Directories
• Provisioning
Agent
Logging
System Management
• Host & DB
configuration
• Patch management
• Vulnerability
management
Agent
Logging
Perimeter Controls
• Routers
• Firewalls
• Content
scanners
Agent
RESPONSE
Help desk ticketing
Network / security operations
REAL-TIME ANALYSIS / RESPONSE
Logging
IDS / Response
• Network IDS
• Network IPS
• Other sensors
Solutions and Technology
 How the Products Work
 Collect
 Inputs from target sources
 Agent and agentless methods
 Aggregate
 Bring all the information to a central point
 Normalize
 Translate disparate syntax into a standardized one
 Correlate
 If A and B then C
 Report
 State of health
 Policy conformance
 Archive
Collect
Aggregate
Normalize
Correlate
Report
Archive
Solutions and Technology
 Understand the business case for the product
Build a strong set of requirements
What will it do?
How will it add business value?
 Understand the assets
Prioritize value
It’s critical, but few products do this successfully today
 Understand Policies
What are the technical security policies?
Data lifecycle considerations
Policies /
compliance
rules
Solutions and Technology
 Consideration–Requirements for visualization?
The Big Red Button
Tailoring views
 Geographic
 Configurability
 Drill down options
Hierarchical views
 Cross-cutting data sharing
 CIO view, auditor view
VISUALIZATION / ADMINISTRATION
Security alerts
Reports
Visualization
Solutions and Technology
 Consideration – What are the life cycle and storage needs?
 Internal policies
 Archive everything? Best have a robust SAN!
 What information is critical to the business?
 What’s in those audit logs?
 Regulatory requirements
 Normalization questions
LONG-TERM STORAGE / AUDIT / INVESTIGATION
 Is the original log data still available?
 Has it been “normalized”?
raw log
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 Know where the backups will go
 Understand lifecycle and mining needs
 Filters and searching- Can’t sift through petabytes of data manually
Solutions and Technology
 Consideration–How the data will be used after its
collected?
Will the data be used for
 Historical “forensics”?
 Track back and replay
LONG-TERM STORAGE / AUDIT / INVESTIGATION
 Legal forensics?
Legal Matters
 Chain of custody
 Tamper proof/evident
 Original audit/log data (not normalized)
 Integrity or “garbage in garbage out”
raw log
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Leveraging Security Event Information
 Agenda
 Why managing security information is a difficult task
 Solutions and technology
 Emerging trends
 Recommendations
Emerging Trends
 “The Manager of Managers”
Automated remediation, change and compliance management
But will it break the separation of duties model?
May be viable with larger vendors, but market longevity may
be a concern with smaller, niche vendors
 Identity Management and Security Event Information
Management
 Wireless LAN Security Information
 Voice Over IP Security Management
 Sharing Security Operations Center data with the Network
Operations Center
Emerging Trends
 Early SEMs focused on gathering logs from the
perimeter security devices
Firewalls, routers
Evolution is toward a more comprehensive integration
Take in more input for greater vision
Monitoring activity both inside the organization as well as on
the perimeter
Additional intelligence can lead to more precise correlation
Emerging Trends
 Monitoring for Abuse
As the focus is turned inward
User behavior can be captured
Links back to Identity Management synch with SEIM
Emerging Trends
 SEIM is not currently a standards-based approach
 Vendor proprietary approach to
 Logging/Event reporting
 Normalization techniques
 CVE – Common Vulnerabilities and Exposures
 “A dictionary, not a database”
 Creates standardized names for vulnerabilities
 CVSS – Common Vulnerability Scoring System
 Standard ratings of vulnerabilities
 Very early stage
Leveraging Security Event Information
 Agenda
 Why managing security information is a difficult task
 Solutions and technology
 Emerging trends
 Recommendations
Recommendations
 Understand the business goals for the SEIM
 Determine which systems must be covered
 What level of data gathering is required
 Appropriate storage mechanisms
 Make some friends!
 Talk to others who have deployed SEIMs in environments similar to yours
 Since the SEIM may touch cross-enterprise systems, making friends inside
the organization is import too
 Build solid RFPs before speaking to vendors
 Vendors like their products best (understandably)
 Make the SEIM work for your company, don’t compromise your business
requirements to fit into the SEIM vendor’s framework
Recommendations
 Weigh vendor claims carefully
Scalability can affect utility of the product
Throughput, events per second (EPS) numbers may be
apples to oranges
 Take an architectural approach
Incorporate the SEIM into the network architecture
Consider ability to integrate with existing network
systems managers consoles
Don’t forget separation of duties requirements
Flexibility of solution for
 Views, privacy, lifecycle and storage control
Recommendations
 Remember you don’t need to
solve world hunger, yet
 Consider phased
implementations
 Cover a smaller subset of systems,
perhaps on the perimeter
 Before moving to more comprehensive,
whole-enterprise, event information
management deployments
Agent
Logging
Perimeter Controls
• Routers
• Firewalls
• Content scanners
Agent
Logging
Intrusion Detection / Response
• Network IDS
• Network IPS
• Other sensors
Leveraging Security Information
 Conclusion
Managing information security is a difficult task
SEIM is an emerging technology
 With emerging capabilities and uses
 Not all products work the same way
 Or do the same things
To leverage security information
 Understand your needs before speaking to vendors
 The technology decision will be much easier if you know your
requirements up front