ET EXPLOIT CISCO FIREWALL SNMP Buffer Overflow Extrabacon (CVE-2016-6366)

Query · suricata

content:"|06 01 04 01 09 09 83 6B|";
pcre:"/^(?:\x01(?:(?:\x01(?:(?:\x04(?:(?:\x03(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b])?)?|\x04(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b])?)?|\x01(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a])?)?|\x02(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a])?)?))?|\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c])?|\x02(?:[\x01\x02\x03\x04])?|\x03(?:[\x01\x02])?))?|\x03(?:(?:\x03(?:\x01(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e])?)?)?|\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13])?|\x02(?:[\x01\x02])?))?|\x05(?:(?:\x02(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07])?)?|\x01(?:[\x01\x02\x03])?))?|\x02(?:(?:[\x01\x02]|\x03(?:\x01(?:[\x01\x02\x03])?)?))?|\x06(?:\x01(?:[\x01\x02\x03\x05\x06\x07\x08\x09\x0a\x0b])?)?|\x07(?:[\x01\x02])?|\x04))?|\x02(?:(?:\x02(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c])?|(?:\x01)?\x01))?)/Rsi";
content:"|81 10 81 10 81 10 81 10 81 10 81 10 81 10 81 10|"; within:160; fast_pattern;
Raw source ET EXPLOIT CISCO FIREWALL SNMP Buffer Overflow Extrabacon (CVE-2016-6366) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert udp $EXTERNAL_NET any -> $HOME_NET 161 (
    msg:"ET EXPLOIT CISCO FIREWALL SNMP Buffer Overflow Extrabacon (CVE-2016-6366)";
    content:"|06 01 04 01 09 09 83 6B|";
    pcre:"/^(?:\x01(?:(?:\x01(?:(?:\x04(?:(?:\x03(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b])?)?|\x04(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b])?)?|\x01(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a])?)?|\x02(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a])?)?))?|\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c])?|\x02(?:[\x01\x02\x03\x04])?|\x03(?:[\x01\x02])?))?|\x03(?:(?:\x03(?:\x01(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e])?)?)?|\x01(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13])?|\x02(?:[\x01\x02])?))?|\x05(?:(?:\x02(?:\x01(?:[\x01\x02\x03\x04\x05\x06\x07])?)?|\x01(?:[\x01\x02\x03])?))?|\x02(?:(?:[\x01\x02]|\x03(?:\x01(?:[\x01\x02\x03])?)?))?|\x06(?:\x01(?:[\x01\x02\x03\x05\x06\x07\x08\x09\x0a\x0b])?)?|\x07(?:[\x01\x02])?|\x04))?|\x02(?:(?:\x02(?:[\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c])?|(?:\x01)?\x01))?)/Rsi";
    content:"|81 10 81 10 81 10 81 10 81 10 81 10 81 10 81 10|"; within:160; fast_pattern;
    reference:cve,2016-6366;
    classtype:misc-attack;
    sid:2023086; rev:1;
    metadata:affected_product Cisco_ASA, attack_target Server, created_at 2016_08_25, cve CVE_2016_6366, deployment Datacenter, performance_impact Low, confidence High, signature_severity Critical, tag CISA_KEV, updated_at 2019_07_26;
)

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