alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT OctoberCMS Auth Bypass Inbound M1 trigger_reset (CVE-2021-32648)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/backend/backend/auth/restore"; http.request_body; content:"_token="; startswith; content:"&postback=1"; content:"&login=admin"; reference:url,github.com/Immersive-Labs-Sec/CVE-2021-32648/blob/main/cve-2021-32648.py; reference:cve,2021-32648; classtype:attempted-admin; sid:2034929; rev:1; metadata:attack_target Server, created_at 2022_01_18, cve CVE_2021_32648, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2022_01_18, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)