ET WEB_SERVER Oracle WebLogic Unauthenticated IIOP/T3 Remote Code Execution (CVE-2023-21839)

Query · suricata

flow:established,to_server;
content:"GIOP|01 02 00 00|"; startswith;
content:"rebind_any";
content:"weblogic|2e|jndi|2e|internal|2e|ForeignOpaqueReference"; fast_pattern;
content:"ldap|3a 2f 2f|";
target:dest_ip;
Raw source ET WEB_SERVER Oracle WebLogic Unauthenticated IIOP/T3 Remote Code Execution (CVE-2023-21839) · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp any any -> $HOME_NET 7001 (
    msg:"ET WEB_SERVER Oracle WebLogic Unauthenticated IIOP/T3 Remote Code Execution (CVE-2023-21839)";
    flow:established,to_server;
    content:"GIOP|01 02 00 00|"; startswith;
    content:"rebind_any";
    content:"weblogic|2e|jndi|2e|internal|2e|ForeignOpaqueReference"; fast_pattern;
    content:"ldap|3a 2f 2f|";
    reference:url,packetstorm.news/files/id/172882;
    reference:cve,2023-21839;
    classtype:misc-attack;
    sid:2065403; rev:1;
    metadata:affected_product Oracle_WebLogic, attack_target Networking_Equipment, created_at 2025_10_27, cve CVE_2023_21839, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_27;
    target:dest_ip;
)

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