Cyber Risks · Cisco Talos

Innovation -- You Keep Using That Word...

Summary: Cisco Talos ran Snort and Suricata on the same commodity hardware with the latest VRT open-source ruleset, and Suricata dropped 58% of 30 million packets in one test set and 52% in a second with hyperthreading disabled, against Snort's 0.0204% and 0.0017%. An internal VRT report found Suricata peaked at about 300 Mb/s without rules and about 200 Mb/s with rules, while Snort hit 894 Mb/s with no drops.

Why it matters: The OISF spent nearly a million dollars of DHS money on an engine that, on the same box and ruleset, dropped more than half the traffic it was given - and its decision to skip an obfuscated or .so rule format caps detection at its own rule language, which the author calls an unacceptable limitation for complex environments and TS/SCI work.

Read the original at Cisco Talos ↗

Topics
Supply Chain & AppSec
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