Cyber Risks · GreyNoise Blog

Grey Noise | Creation and utilization of Grey Noise tags

Summary: GreyNoise's research team builds tags, described in its documentation as a signature-based detection method for capturing patterns and creating data subsets, using two approaches: data-driven, which works backward from sensor data through discovery, research, and implementation phases, and emerging threats-driven, which monitors sources including tech news, social media, and CISA's Known Exploited Vulnerabilities Catalog. The emerging threats method produced early warning for mass scanning or exploitation of CVE-2022-26134, an Atlassian Confluence Server RCE, and running signatures across historical data let GreyNoise determine first-occurrence dates and show that OMIGOD was exploited before exploit details were publicly available.

What's compelling: GreyNoise's historical replay of signatures showed OMIGOD was exploited before its exploit details were public - meaning the window between real-world exploitation and your patch decision can already be closed by the time you hear about the vulnerability.

Read the original at GreyNoise Blog ↗

Topics
Vulnerabilities & Patching
Mentions
CVE-2022-26134
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