Monday, April 8, 2024

Security Onion 2.3 has reached End Of Life

On 10/6/2023, we announced a 6-month EOL notice for Security Onion 2.3:

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


Security Onion 2.3 has now reached End Of Life. If you still have existing installations of Security Onion 2.3, please upgrade to Security Onion 2.4:

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

Tuesday, April 2, 2024

Security Onion and the xz Vulnerability

Recently, a vulnerability was reported in the xz library:

https://www.cisa.gov/news-events/alerts/2024/03/29/reported-supply-chain-compromise-affecting-xz-utils-data-compression-library-cve-2024-3094

https://www.cve.org/CVERecord?id=CVE-2024-3094

https://nvd.nist.gov/vuln/detail/CVE-2024-3094

https://www.openwall.com/lists/oss-security/2024/03/29/4

https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-users


Security Onion is NOT affected by this vulnerability.


Searching for xz Vulnerability across non-Security Onion Devices


If you have Security Onion deployed in your enterprise with Elastic Agent deployed to your endpoints, you can use Osquery Manager to search for vulnerable xz packages as shown in these Github gists by James Spiteri.


Linux:

https://gist.github.com/jamesspi/ee8319f55d49b4f44345c626f80c430f


macOS:

https://gist.github.com/jamesspi/5cb060b5e0e2d43222a71c876b56daab


For example, here's the Linux query run across several Linux endpoints (hostnames excluded from the screenshot):



10% Early Bird discount for Security Onion Fundamentals for Analysts & Admins Class in June 2024!

 We've scheduled the next run of our 4-day Security Onion Fundamentals for Analysts & Admins class!


Use promo code earlybird by April 16, 2024 to receive 10% off!


For more details and to register, please see:

https://securityonionjune2024.eventbrite.com


If you have any questions about this class, please use the Contact link on the bottom of the Eventbrite page.


For other training options, please see:

https://securityonionsolutions.com/training/




Monday, April 1, 2024

Security Onion 2.3.300 now available!

Security Onion 2.3.300 is now available! It includes updates for both Suricata and Strelka:


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


This 2.3.300 release is the LAST release for Security Onion 2.3! 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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Security Onion 2.3 has reached End Of Life

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