alert http any any -> [$HTTP_SERVERS,$HOME_NET] any (msg:"ET WEB_SPECIFIC_APPS Possible Oracle WebLogic RCE Inbound M4 (CVE-2020-14882)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"console.portal"; http.header; content:"|0d 0a|cmd|3a 20|"; fast_pattern; http.request_body; content:"_nfpb=true"; reference:url,github.com/jas502n/CVE-2020-14882; reference:cve,2020-14882; reference:cve,2020-14883; classtype:attempted-admin; sid:2031186; rev:1; metadata:created_at 2020_11_06, cve CVE_2020_14882, deployment Perimeter, deployment Internal, confidence Medium, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_06;)