Cloudflare observations of Confluence zero day (CVE-2022-26134)
Jun 5, 2022Vaibhav Singhal, Himanshu Anand, Daniel Stinson-Diess, Sourov Zaman, Michael Tremante
Summary
This post details Cloudflare's observations and response to the Confluence zero-day vulnerability (CVE-2022-26134). It covers the immediate engagement of WAF teams to deploy mitigation rules, analysis of exploit attempts in the wild (including pre-advisory activity), and the identification of specific malicious payloads and URLs. The post also outlines Cloudflare's internal response, including log reviews and security checks, and provides recommendations for on-premise Confluence users, including enabling Cloudflare Access and WAF protection, and checking for indicators of compromise.
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