ET WEB_SERVER HP Intelligent Management Java Deserialization RCE Attempt

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
    msg:"ET WEB_SERVER HP Intelligent Management Java Deserialization RCE Attempt";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/login.jsf";
    http.request_body;
    content:"java.util.HashMap";
    content:"javax.management.openmbean.TabularDataSupport";
    reference:cve,2017-12557;
    reference:url,www.exploit-db.com/exploits/45952;
    classtype:web-application-attack;
    sid:2026719; rev:3;
    metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2018_12_10, cve CVE_2017_12557, deployment Datacenter, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_27;
)