alert http any any -> [$HTTP_SERVERS,$HOME_NET] any (msg:"ET WEB_SPECIFIC_APPS Openfire Authentication Bypass/RCE Attempt (CVE-2023-32315)"; flow:established,to_server; http.uri.raw; content:"setup"; content:"setup-s"; within:30; fast_pattern; pcre:"/^.*\x25(?:25)*u002[eE]*\x2f/R"; reference:url,blog.aquasec.com/kinsing-malware-exploits-novel-openfire-vulnerability; reference:url,github.com/miko550/CVE-2023-32315/blob/main/CVE-2023-32315.py; reference:cve,2023-32315; reference:url,nvd.nist.gov/vuln/detail/CVE-2023-32315; reference:url,packetstormsecurity.com/files/173607/Openfire-Authentication-Bypass-Remote-Code-Execution.html; reference:url,www.vulncheck.com/blog/openfire-cve-2023-32315; classtype:attempted-admin; sid:2047862; rev:3; metadata:affected_product Openfire, attack_target Web_Server, tls_state TLSDecrypt, created_at 2023_08_31, cve CVE_2023_32315, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_10_20, reviewed_at 2023_08_31, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)