Security Onion 2.4.140 is now available including Suricata 7.0.9, Zeek 7.0.6, and much more!Component UpdatesThe main focus of this release is upgrading Suricata and Zeek.Suricata 7.0.9 includes some security fixes:https://suricata.io/2025/03/18/suricata-7-0-9-released/Zeek 7.0.6 includes some bug fixes:https://github.com/zeek/zeek/releases/tag/v7.0.6SOC Config ImprovementsThis release adds a new feature to SOC Config that allows you to move certain configuration entries up or down. This includes things like SOC Dashboard queries, SOC Hunt queries, and SOC Actions:Release NotesThere are many more fixes included in this release! For a complete list of all changes, please see the Release Notes:https://docs.securityonion.net/en/2.4/release-notes.html#changesKnown IssuesFor a list of known issues, please see:https://docs.securityonion.net/en/2.4/release-notes.html#known-issuesAbout Security OnionSecurity 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!DocumentationYou 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 InstallationsIf 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.htmlOnce 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.htmlExisting 2.4 InstallationsIf 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.htmlBefore 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 releases that update components like Salt and Elastic.2.3 EOLAs 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.htmlThanksLots of love went into this release!Special thanks to all our folks working so hard to make this release happen!Josh BrowerJason ErtelCorey OgburnJosh PattersonMike ReevesJorge ReyesQuestions, Problems, and FeedbackIf 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/2-4Security Onion ProWe recently celebrated 10 years in business by announcing Security Onion Pro:https://blog.securityonion.net/2024/07/celebrating-10-years-of-security-onion.htmlSecurity Onion Pro includes many enterprise features that folks have been asking for:Active Query ManagementExternal APIOpen ID Connect (OIDC)Data at Rest EncryptionFIPS for the OSDoD STIG for the OSExternal Notifications in SOCTime Tracking inside of CasesGuaranteed Message DeliveryYou can read more about these enterprise features at:https://securityonion.com/proTrainingNeed 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/trainingSecurity Onion Solutions Hardware AppliancesWe 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/hardwareCloud InstallationsFor new Security Onion 2 installations in the cloud, this new version will soon be available on the AWS, Azure, and GCP marketplaces!AWS Marketplace and Documentation:https://securityonion.net/aws/?ref=_ptnr_soc_blog_250320https://docs.securityonion.net/en/2.4/cloud-amazon.htmlAzure Marketplace and documentation:https://securityonion.net/azurehttps://docs.securityonion.net/en/2.4/cloud-azure.htmlGCP Marketplace and documentation:https://securityonion.net/googlehttps://docs.securityonion.net/en/2.4/cloud-google.htmlScreenshot TourIf 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
Security Onion is a Georgia-based open-source platform that offers solutions including threat hunting, network security monitoring and log management for businesses.