alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SPECIFIC_APPS Blind Server-Side Request Forgery";
flow:established,to_server;
http.uri;
content:"/xmlrpc/pingback"; endswith;
http.request_body;
content:"<methodCall>";
content:"<methodName>pingback.ping</methodName>"; fast_pattern;
content:"<value>http://";
content:"<value>http://"; distance:0;
reference:url,exploit-db.com/raw/44945/;
classtype:attempted-user;
sid:2025759; rev:3;
metadata:attack_target Client_Endpoint, created_at 2018_06_27, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_09_16;
)