ET POLICY Anonymous LDAPv3 Bind Request Outbound

Query · suricata

flow:established,to_server;
flowbits:set,ET.LDAPAnonBindRequest;
flowbits:isnotset,ET.LDAPAnonBindRequest;
stream_size:server,<,5;
dsize:14;
content:"|30 0c 02 01|"; startswith;
content:"|60 07 02 01 03 04 00 80 00|"; endswith;

Rule dependencies

Excludes

  • ET.LDAPAnonBindRequest — excluded, not a dependency

Feeds into

  • 2 rules read ET.LDAPAnonBindRequest · view all
Raw source ET POLICY Anonymous LDAPv3 Bind Request Outbound · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp [$HOME_NET,$HTTP_SERVERS] any -> $EXTERNAL_NET any (
    msg:"ET POLICY Anonymous LDAPv3 Bind Request Outbound";
    flow:established,to_server;
    flowbits:set,ET.LDAPAnonBindRequest;
    flowbits:isnotset,ET.LDAPAnonBindRequest;
    stream_size:server,<,5;
    dsize:14;
    content:"|30 0c 02 01|"; startswith;
    content:"|60 07 02 01 03 04 00 80 00|"; endswith;
    reference:url,ldap.com/ldapv3-wire-protocol-reference-bind/;
    classtype:policy-violation;
    sid:2034704; rev:2;
    metadata:attack_target Client_and_Server, created_at 2021_12_14, deployment Perimeter, confidence High, signature_severity Informational, updated_at 2021_12_20;
)

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