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SID: 2033345 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 2Jul 16, 2021, 12:00 PM

ET EXPLOIT [ConnectWise CRU] Potential Sonicwall SMA Authentication Bypass (management) (CVE-2021-20016)

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT [ConnectWise CRU] Potential Sonicwall SMA Authentication Bypass (management) (CVE-2021-20016)"; flow:established,to_server; http.uri; content:"/cgi-bin/management"; http.referer; content:!"/__api__/v1/logon"; tag:session,5,packets; reference:cve,2021-20016; reference:url,www.jpcert.or.jp/english/at/2021/at210006.html; classtype:web-application-attack; sid:2033345; rev:2; metadata:created_at 2021_07_16, cve CVE_2021_20016, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)

Jul 16, 2021, 12:00 PM

Jul 16, 2021, 12:00 PM

Sep 21, 2024, 3:00 AM

Sep 10, 2025, 9:34 PM

rules/emerging-exploit.rules