Thursday, September 9, 2021

Snort version released — Here are all the updates and improvements


The SNORTⓇ team recently released a new version of Snort 3 on and the Snort 3 GitHub.


Snort contains several new features and bug fixes. Here's a complete rundown of what's new in this version. Users are encouraged to update as soon as possible and to upgrade to Snort 3 if they have not already done so.
  • decoder: ICMP6 — Use source and destination addresses from packet to compute ICMP6 checksum when NAT is in effect.
  • http_inspect: Enable traces for JS normalizer.
  • http_inspect: Include cookies in http_raw_header.
  • http_inspect: Reduce void space in HttpFlowData.
  • stream_tcp: Add pegs for maximum observed queue size.
  • stream_tcp: Normalize data when queue limits are enabled.
  • stream_tcp: Only update window on right-edge acks.
  • stream_tcp: Set sequence number in trimmed packets up to the queue limit and increase defaults.

Snort 3 is the next generation of the Snort Intrusion Prevention System. The GitHub page will walk users through what Snort 3 has to offer and guide users through the steps of getting set up — from download to demo. Users unfamiliar with Snort should start with the Snort Resources page and the Snort 101 video series

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