alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET WEB_SPECIFIC_APPS Possible Apache Unomi OGNL Eval RCE Inbound M2 (CVE-2020-13942)"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"condition|22 3a|"; content:"getClass|28|"; distance:0; nocase; content:".runtime"; distance:0; nocase; content:"getDeclaredMethods|28|"; distance:0; fast_pattern; content:".invoke|28|"; distance:0; reference:url,www.checkmarx.com/blog/apache-unomi-cve-2020-13942-rce-vulnerabilities-discovered/; reference:cve,2020-13942; classtype:attempted-admin; sid:2031220; rev:1; metadata:affected_product Apache_HTTP_server, attack_target Server, created_at 2020_11_19, cve CVE_2020_13942, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_19;)