Best Practices for Configuring Your OSSIM Installation
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The document provides a comprehensive guide for deploying and configuring OSSIM with OSSEC agents, detailing the steps for adding agents, configuring settings, verifying operations, and conducting vulnerability assessments. It also compares OSSIM with USM, highlighting key differences in features such as correlation directives and reporting capabilities. The document includes links to resources, forums, and training opportunities for users seeking further assistance and information.
Best Practices for Configuring Your OSSIM Installation
- 1. Title
- 2. Introductions Mark Allen Technical Sales Engineer Garrett Gross Sr. Technical PMM
- 3. Resources for OSSIM Users AlienVault Forums: https://www.alienvault.com/forums/discussions/tagged/ossim LinkedIn Group: https://www.linkedin.com/groupInvitation?gid=3793 USM & OSSIM On-Demand Training Archives: https://www.alienvault.com/product-training AlienVault Blog – Analysis from the AlienVault Labs research team, practical tips to secure your environment & industry trends
- 4. Agenda How to deploy & configure OSSEC agents Best practices for configuring syslog and enabling plugins Scanning your network for assets and vulnerabilities
- 7. OSSIM comes with OSSEC host-based IDS, which provides: • Log monitoring and collection • Rootkit detection • File integrity checking • Windows registry integrity checking • Active response OSSEC uses authenticated server/agent architecture. Host IDS OSSIM Sensor OSSEC Server Servers OSSEC Agent OSSIM Server UDP 1514 Normalized events
- 8. Deploying HIDS 1. Add an agent in OSSIM 2. Deploy HIDS agent to the target system. 3. Optionally change configuration file on the agent. 4. Verify HIDS operations.
- 9. Add an agent. Save agent. Specify name and IP address. Add Agent in OSSIM Required task for all operating systems Can also be added through the manage_agents script Environment > Detection > HIDS > Agents
- 10. Specify domain, username and password of the target system. Download preconfigured agent for Windows. Automatic deployment for Windows. Extract key. Deploy HIDS Agent to Target System Automated deployment for Windows machines Manual installation for other OS Key extraction is required for manual installation
- 11. Configuration file. Log file. Change Configuration File on Agent OSSEC configuration is controlled by a text file. Agent needs to be restarted after configuration changes. Log file is available for troubleshooting.
- 12. Agent status should be active. Verify HIDS Operations Displays overview of OSSEC events and agent information Environment > Detection > HIDS > Overview
- 13. OSSEC events. Verify HIDS Operations (Cont.) Verify if OSSEC events are displayed in the SIEM console. Utilize search filter to display only events from OSSEC data source. Analysis > Security Events (SIEM) > SIEM
- 14. Verify HIDS Operations (Cont.) Environment > Detection > HIDS > Agents > Agent Control Verify registry integrity. Verify presence of rootkits. Verify file integrity.
- 15. Syslog & Plugins
- 16. Syslog Forwarding Syslog configuration will vary based on source device/application but, usually, the necessary parameters are: • Destination IP • Source IP • Port (default is UDP 514)
- 17. Enabling Plugins Enable plugin at the asset level General > Plugins > Edit Plugins Green light under “Receiving Data” will confirm successful log collection
- 19. Vulnerability Assessment Uses a built-in OpenVAS scanner Detects vulnerabilities in assets • Vulnerabilities are correlated with events‘ cross-correlation rules • Useful for compliance reports and auditing Managed from the central SIEM console: • Running and scheduling vulnerability scans • Examining reports • Updating vulnerability signatures
- 20. Advanced Options Vulnerability assessment can be: • Authenticated (SSH and SMB) • Unauthenticated Predefined profiles can be selected: • Non destructive full and slow scan • Non destructive full and fast scan • Full and fast scan including destructive tests Custom profiles can be created.
- 21. Vulnerability Assessment Config 1. (Optionally) tune global vulnerability assessment settings. 2. (Optionally) create a set of credentials. 3. (Optionally) create a scanning profile. 4. Create a vulnerability scan job. 5. Examine scanning results. 6. Optionally create a vulnerability or compliance report.
- 22. Update configuration. Select vulnerability ticket threshold. Tune Global Vulnerability Assessment Settings The vulnerability assessment system opens a ticket for found vulnerabilities. Start with a high threshold and fix important vulnerabilities first. Configuration > Administration > Main
- 23. Specify login username. Specify credential set name. Select authentication type. Click settings. Create Set of Credentials Used to log into a machine for authenticated scan Supports the DOMAIN/USER username Environment > Vulnerabilities > Overview
- 24. Examine 3 default profiles. Enable/disable plugin family. Create a new profle. Edit profiles. Create Scanning Profile Enable profiles that apply to assets you are scanning. Environment > Vulnerabilities > Overview
- 25. Create a new scan job. Import Nessus scan report. Select schedule method. Specify scan job name. Select profile. Select server. Select assets. Select credential set for authenticated scan. Save job. Create Vulnerability Scan Job Environment > Vulnerabilities > Scan Jobs
- 26. Examine vulnerability statistics. View vulnerability report for all assets. Examine reports for all scan jobs. Examine Vulnerabilities Results Environment > Vulnerabilities > Overview
- 27. OSSIM vs. USM
- 28. How is USM different? Correlation Directives: Over 2,000 built-in correlation directives developed by the AlienVault Labs Threat Research Team, and updated weekly Reporting: 150+ Customizable Reports, including compliance-specific reports Log Management: Robust Log Management, Log Search & Long-Term Log Retention Professional Support via phone & email as well as customer support portal And more…view comparison chart here: https://www.alienvault.com/products/compare-ossim-to-alienvault-usm “I started out with OSSIM and I didn’t fully realize how much value I would get out of USM until I started using it. The reporting is awesome, it’s been a big benefit for me. And, having a fully supported solution means I can get answers to my questions much more quickly than before.” – Matthew Frederickson, Director of Information Technology, Council Rock School District
- 29. USM + Free Installation Services http://www.alienvault.com/marketing/smb-bundles
- 30. 888.613.6023 ALIENVAULT.COM CONTACT US [email protected] Now for some Q&A Resources for OSSIM Users OSSIM vs. USM Comparison Chart https://www.alienvault.com/products/compare-ossim-to-alienvault-usm AlienVault Forum https://www.alienvault.com/forums/discussions/tagged/ossim LinkedIn Group https://www.linkedin.com/groupInvitation?gid=3793 Subscribe to the AlienVault Blog https://www.alienvault.com/blogs Hands-on 5-day Training Classes, in-person or “Live on-line” https://www.alienvault.com/support/classroom-training