Wednesday, March 6, 2024

1-month End Of Life (EOL) reminder for Security Onion 2.3

In October of last year, we announced the End Of Life (EOL) date for Security Onion 2.3:


https://blog.securityonion.net/2023/10/6-month-eol-notice-for-security-onion-23.html


2.3 EOL is now only 1 month away! If you haven't already, please make plans to move to Security Onion 2.4. If you would like to migrate your data from 2.3 to 2.4, you can find an overview of the process at:


https://docs.securityonion.net/en/2.4/appendix.html


Tuesday, March 5, 2024

Vulnerabilities in Zeek Ethercat Plugin

CISA recently announced some vulnerabilities in the Zeek Ethercat plugin:

https://www.cisa.gov/news-events/ics-advisories/icsa-24-051-02

https://www.securityweek.com/zeek-security-tool-vulnerabilities-allow-ics-network-hacking/


The Zeek Ethercat plugin is included in Security Onion 2.3 and 2.4 by default. We recommend updating to the latest version of Security Onion to make sure you have the latest version of the Zeek Ethercat plugin. There are separate sections for both 2.3 and 2.4 below to provide the information that you need for your version of Security Onion. If you have questions or problems, please start a new discussion at https://securityonion.com/discuss.


2.4


If you are running Security Onion 2.4, you will want to make sure that you are running the latest version of 2.4 which is 2.4.50 as of this writing:

https://blog.securityonion.net/2024/02/security-onion-2450-now-available.html


You can update to the latest version of 2.4 as shown here:

https://docs.securityonion.net/en/2.4/soup.html


If for some reason you can't upgrade to the latest version of Security Onion 2.4 immediately, here are some possible mitigations.


Disable the Zeek Ethercat plugin via the Configuration interface:

https://docs.securityonion.net/en/2.4/zeek.html#configuration


OR 


Switch from Zeek to Suricata for network metadata:

https://docs.securityonion.net/en/2.4/suricata.html#metadata


2.3


If you are still running Security Onion 2.3, you will want to make sure that you are running the latest version of 2.3 which is 2.3.290 as of this writing:

https://blog.securityonion.net/2024/02/security-onion-23290-now-available.html


You can update to the latest version of 2.3 as shown here:

https://docs.securityonion.net/en/2.3/soup.html


As a reminder, Security Onion 2.3 reaches End of Life on April 6, 2024 so you'll want to go ahead and migrate to Security Onion 2.4:

https://blog.securityonion.net/2023/10/6-month-eol-notice-for-security-onion-23.html


If for some reason you can't upgrade to the latest version of Security Onion 2.3 or 2.4 immediately, here are some possible mitigations.


Disable the Zeek Ethercat plugin:

https://docs.securityonion.net/en/2.3/zeek.html#configuration


OR


Switch from Zeek to Suricata for network metadata:

https://docs.securityonion.net/en/2.3/suricata.html#metadata


Friday, March 1, 2024

Security Onion Documentation printed book now updated for Security Onion 2.4.50!

We've been offering our Security Onion documentation in book form on Amazon for a few years and it's now been updated for the recently released Security Onion 2.4.50!




Thanks to Richard Bejtlich for writing the inspiring foreword!


Proceeds go to the Rural Technology Fund!


This edition has been updated for Security Onion 2.4.50 and includes a 20% discount code for our on-demand training and certification!


This book covers the following Security Onion topics:


  • First Time Users
  • Getting Started
  • Security Onion Console (SOC)
  • Security Onion Desktop
  • Network Visibility
  • Host Visibility
  • Logs
  • Updating
  • Accounts
  • Services
  • Customizing for Your Environment
  • Tuning
  • Tricks and Tips
  • Utilities



Q&A


What is the difference between this book and the online documentation?


This book is the online documentation formatted specifically for print.  It also includes an inspiring foreword by Richard Bejtlich that is not available anywhere else!  Proceeds go to the Rural Technology Fund!  Finally, the printed book includes a 20% discount code for our on-demand training and certification.


Who should get this book?


You should get this book if you work on airgap networks or simply want a portable reference that doesn't require an Internet connection or batteries! Also anyone who wants to donate to a worthy cause like Rural Technology Fund!


What is the difference between this edition and the previous edition?


This edition has been updated for Security Onion 2.4.50!


Where do we get it?


https://securityonion.com/book


Thursday, February 29, 2024

Security Onion 2.3.290 now available including Suricata and Zeek updates!

Security Onion 2.3.290 is now available! It includes updates for both Suricata and Zeek:


https://docs.securityonion.net/en/2.3/release-notes.html#changes



Please note that Zeek now includes Community ID by default. This could potentially cause a problem if you've modified your Zeek config in the past. If you have /opt/so/saltstack/local/pillar/zeek/init.sls, then you should move it another location so that it doesn't override the new Zeek config. For example, please see:

https://github.com/Security-Onion-Solutions/securityonion/discussions/11922


Also note that, if you are running Security Onion as a VM in Proxmox, you may need to update the CPU type of your Security Onion VM due to changes in Docker containers:


https://docs.securityonion.net/en/2.3/proxmox.html#cpu


2.3 EOL


Security Onion 2.3 will reach End Of Life (EOL) on April 6, 2024:

https://blog.securityonion.net/2023/10/6-month-eol-notice-for-security-onion-23.html


Please migrate to Security Onion 2.4 soon!


Documentation


You can find our online documentation here:

https://docs.securityonion.net/en/2.3/


New Installations


If you want to perform a new installation, please review the documentation and then you can find instructions here:

https://docs.securityonion.net/en/2.3/download.html


Existing 2.3 Installations


WARNING! If you have an existing Security Onion 2.3 installation that hasn't yet been updated to version 2.3.140 or higher, then you should be aware that the Elastic components will undergo a major version upgrade to version 8. Please review and follow the steps at the link below. Failure to do so could result in loss of access to all data stored inside of Elastic and a non-functioning Security Onion installation.


https://docs.securityonion.net/en/2.3/soup.html#elastic-8


Please be aware that custom settings in Kibana may be overwritten during upgrade. We recommend that you test the upgrade process on a test deployment before deploying to production. If you have a distributed deployment, then we recommend monitoring SOC Grid while your update is running to verify that all nodes update properly. If there are issues, you can review logs, services, and containers for any additional clues. If you need help, please see our support information below.


If you have custom Elasticsearch templates, please see:

https://docs.securityonion.net/en/2.3/elasticsearch.html#custom-templates


For more information about the update process, please see:

https://docs.securityonion.net/en/2.3/soup.html


AWS Marketplace


Existing Security Onion 2 AMI users should use the "soup" command to upgrade:

https://docs.securityonion.net/en/2.3/soup.html


AMI Documentation:

https://docs.securityonion.net/en/2.3/cloud-ami.html


Azure Marketplace


Existing Security Onion 2 users on Azure should use the "soup" command to upgrade:

https://docs.securityonion.net/en/2.3/soup.html


Azure Documentation:

https://docs.securityonion.net/en/2.3/cloud-azure.html


Questions or Problems


If you have questions or problems, please see our community support forum guidelines:

https://docs.securityonion.net/en/2.3/community-support.html


You can then find the community support forum at:

https://securityonion.net/discuss


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


Training


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


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://securityonionsolutions.com/hardware


Screenshot Tour


If you want the quickest and easiest way to try out Security Onion 2, just follow the screenshots below to install an Import node and then optionally enable the Analyst Workstation. This can be done in a minimal VM with only 4GB RAM! For more information, please see:

https://docs.securityonion.net/en/2.3/first-time-users.html



















































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1-month End Of Life (EOL) reminder for Security Onion 2.3

In October of last year, we announced the End Of Life (EOL) date for Security Onion 2.3: https://blog.securityonion.net/2023/10/6-month-eol-...

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