Add vpatch-CVE-2026-73570 rule and test - #73
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crowdsec-automation wants to merge 4 commits into
Open
crowdsec-automation wants to merge 4 commits into
crowdsec-automation wants to merge 4 commits into
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Hello @crowdsec-automation, Scenarios/AppSec Rule are compliant with the taxonomy, thank you for your contribution! |
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Hello @crowdsec-automation and thank you for your contribution! ❗ It seems that the following scenarios are not part of the 'crowdsecurity/appsec-virtual-patching' collection: 🔴 crowdsecurity/vpatch-CVE-2026-73570 🔴 |
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Hello @crowdsec-automation, ✅ The new VPATCH Rule is compliant, thank you for your contribution! |
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The rule inspects the entire request body for the SMTP command-injection pattern used by the exploit. It requires both an
EHLOcommand containing a shell backtick and thenslookupcommand used in the supplied payload, reducing false positives from ordinary SMTP traffic and generic backticks.The original Nuclei template exploits SMTP on TCP port 25 rather than HTTP. Because CrowdSec WAF rules operate on HTTP request zones, the test template represents the SMTP payload inside an HTTP request body so that the detection rule can be exercised. The rule does not rely on the Zimbra web client discovery request because that request is only a version check and is not itself malicious.
Exploit URL: https://github.com/projectdiscovery/nuclei-templates/blob/main/network/cves/2026/CVE-2026-73570.yaml