alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET POLICY Vulnerable Java Version 1.8.x Detected"; flow:established,to_server; flowbits:set,ET.http.javaclient.vulnerable; http.user_agent; content:"Java/1.8.0_"; content:!"421"; within:3; threshold:type limit, count 2, seconds 300, track by_src; reference:url,www.oracle.com/java/technologies/javase/8u-relnotes.html; classtype:bad-unknown; sid:2019401; rev:42; metadata:affected_product Java, attack_target Client_Endpoint, created_at 2014_10_15, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_07_18, reviewed_at 2023_09_22;)