mirror of https://github.com/OISF/suricata
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20 lines
1.8 KiB
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20 lines
1.8 KiB
Plaintext
# Malformed data in request. Malformed means length fields are wrong, etc.
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alert dns any any -> any any (msg:"SURICATA DNS malformed request data"; flow:to_server; app-layer-event:dns.malformed_data; classtype:protocol-command-decode; sid:2240002; rev:2;)
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alert dns any any -> any any (msg:"SURICATA DNS malformed response data"; flow:to_client; app-layer-event:dns.malformed_data; classtype:protocol-command-decode; sid:2240003; rev:2;)
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# Response flag set on to_server packet
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alert dns any any -> any any (msg:"SURICATA DNS Not a request"; flow:to_server; app-layer-event:dns.not_request; classtype:protocol-command-decode; sid:2240004; rev:3;)
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# Response flag not set on to_client packet
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alert dns any any -> any any (msg:"SURICATA DNS Not a response"; flow:to_client; app-layer-event:dns.not_response; classtype:protocol-command-decode; sid:2240005; rev:3;)
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# Z flag (reserved) not 0
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alert dns any any -> any any (msg:"SURICATA DNS Z flag set"; app-layer-event:dns.z_flag_set; classtype:protocol-command-decode; sid:2240006; rev:2;)
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alert dns any any -> any any (msg:"SURICATA DNS Invalid opcode"; app-layer-event:dns.invalid_opcode; classtype:protocol-command-decode; sid:2240007; rev:1;)
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# A resource name was too long (over 1025 chars)
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alert dns any any -> any any (msg:"SURICATA DNS Name too long"; app-layer-event:dns.name_too_long; classtype:protocol-command-decode; sid:224008; rev:1;)
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# An infinite loop was found while decoding a DNS resource name.
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alert dns any any -> any any (msg:"SURICATA DNS Infinite loop"; app-layer-event:dns.infinite_loop; classtype:protocol-command-decode; sid:224009; rev:1;)
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# Suricata's maximum number of DNS name labels was reached while parsing a resource name.
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alert dns any any -> any any (msg:"SURICATA DNS Too many labels"; app-layer-event:dns.too_many_labels; classtype:protocol-command-decode; sid:224010; rev:1;)
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