Security Onion 2.4.100 is now available!
20240830 PLEASE NOTE! We've identified an issue in this release and are preparing a hotfix that should be released next week. The issue primarily affects deployments that have deployed remote agents to endpoints AND use Kibana. If you've already updated, you can use SOC Dashboards instead of Kibana dashboards. If you haven't updated yet, we recommend holding off until the hotfix is released to avoid any potential issues.
20240903 The hotfix has been released. Please see https://blog.securityonion.net/2024/09/security-onion-24100-hotfix-20240903.html.
- Elastic 8.14.3
- ElastAlert 2.19.0
- Docker Registry 2.8.3
- Kratos 1.2.0
- Salt 3006.9
- InfluxDB 2.7.9
- Kafka 3.8.0
- Redis 7.2.5
- Telegraf 1.31.3
https://docs.securityonion.net/en/2.4/release-notes.html#changes
Known Issues
For a list of known issues, please see:
https://docs.securityonion.net/en/2.4/release-notes.html#known-issues
About Security Onion
Security Onion is a free and open platform built by defenders for defenders. It includes network visibility, host visibility, intrusion detection honeypots, log management, and case management.
For network visibility, we offer signature based detection via Suricata, rich protocol metadata and file extraction using your choice of either Zeek or Suricata, full packet capture, and file analysis. For host visibility, we offer the Elastic Agent which provides data collection, live queries via osquery, and centralized management using Elastic Fleet. Intrusion detection honeypots based on OpenCanary can be added to your deployment for even more enterprise visibility. All of these logs flow into Elasticsearch and we’ve built our own user interfaces for alerts, dashboards, threat hunting, case management, and grid management.
Security Onion has been downloaded over 2 million times and is being used by security teams around the world to monitor and defend their enterprises. Our easy-to-use Setup wizard allows you to build a distributed grid for your enterprise in minutes!
Documentation
You can find our online documentation here:
https://docs.securityonion.net/en/2.4/
Documentation is always a work in progress. If you find documentation that needs to be updated, please let us know as described in the Feedback section below.
New Installations
If this is your first time installing Security Onion 2.4, then we highly recommend starting with an IMPORT installation as shown at:
https://docs.securityonion.net/en/2.4/first-time-users.html
Once you’re comfortable with your IMPORT installation, then you can move on to more advanced installations as shown at:
https://docs.securityonion.net/en/2.4/architecture.html
Existing 2.4 Installations
If you have an existing Security Onion 2.4 installation, you can update to the latest version using soup:
https://docs.securityonion.net/en/2.4/soup.html
Before updating your production deployment, we highly recommend testing the upgrade process on a test deployment that closely matches your production deployment if possible. This is especially important for this release due to the large number of component changes, especially Salt and Elastic.
Since this release includes an Elastic upgrade, after soup completes you'll want to go to Elastic Fleet and:
- drill into each of your active agent policies, check the Agent Binary Download setting, and adjust if necessary for your deployment
- check for any integrations that need to be upgraded
- check for any agents that need to be upgraded (grid node agents should automatically upgrade so you should just need to look for any additional endpoint agents that you've deployed)
If you haven't already upgraded to 2.4.70 then, in preparation for the new Detections module, the following will be completed during soup:
- Playbook Plays will be backed up to /nsm/backup/detections-migration/ and any active Elastalert rules will be backed up and removed.
- Suricata tuning configurations will be backed to /nsm/backup/detections-migration/ and any thresholds will be migrated over to the new Detections module.
2.3 EOL
As a reminder, Security Onion 2.3 reached End Of Life (EOL) on April 6, 2024:
https://blog.securityonion.net/2023/10/6-month-eol-notice-for-security-onion-23.html
Thanks
Lots of love went into this release!
Special thanks to all our folks working so hard to make this release happen!
- Josh Brower
- Jason Ertel
- Wes Lambert
- Corey Ogburn
- Josh Patterson
- Mike Reeves
Questions, Problems, and Feedback
If you have any questions or problems relating to Security Onion 2.4, please use the 2.4 category at our Discussions site:
https://github.com/Security-Onion-Solutions/securityonion/discussions/categories/2-4
Security Onion Pro
We recently celebrated 10 years in business by announcing Security Onion Pro:
https://blog.securityonion.net/2024/07/celebrating-10-years-of-security-onion.html
Security Onion Pro includes many enterprise features that folks have been asking for:
- Open ID Connect (OIDC)
- Data at Rest Encryption
- FIPS for the OS
- DoD STIG for the OS
- External Notifications in SOC (this feature got even better in this release!)
- Time Tracking inside of Cases
- Guaranteed Message Delivery
You can read more about these enterprise features at:
https://securityonion.com/proTraining
Need training? Start with our free Security Onion Essentials training and then take a look at some of our other official Security Onion training!
https://securityonion.net/training
Security Onion Solutions Hardware Appliances
We know Security Onion's hardware needs, and our appliances are the perfect match for the platform. Leave the hardware research, testing, and support to us, so you can focus on what's important for your organization. Not only will you have confidence that your Security Onion deployment is running on the best-suited hardware, you will also be supporting future development and maintenance of the Security Onion project!
https://securityonion.com/hardware
Cloud Installations
For new Security Onion 2 installations in the cloud, Security Onion 2.4 will soon be available on the AWS, Azure, and GCP marketplaces!
AWS Marketplace and Documentation:
https://securityonion.net/aws/?ref=_ptnr_soc_blog_240830
https://docs.securityonion.net/en/2.4/cloud-amazon.html
Azure Marketplace and documentation:
https://securityonion.net/azure
https://docs.securityonion.net/en/2.4/cloud-azure.html
GCP Marketplace and documentation:
https://securityonion.net/google
https://docs.securityonion.net/en/2.4/cloud-google.html
Screenshot Tour
If you want the quickest and easiest way to try out Security Onion 2.4, just follow the screenshots below to install an Import node. This can be done in a minimal VM with only 4GB RAM! For more information, please see:
https://docs.securityonion.net/en/2.4/first-time-users.html
