ET WEB_SERVER Possible D-Link Router HNAP Protocol Security Bypass Attempt

Query · suricata

flow:established,to_server;
urilen:7;
http.method;
content:"POST";
http.uri;
content:"/HNAP1/"; nocase; endswith; fast_pattern;
http.header;
content:"SOAPAction|3a 20|"; nocase;
content:"/HNAP1/"; distance:0;
pcre:"/^(?:set|get)/Ri";
content:"DeviceSettings"; within:14;
Raw source ET WEB_SERVER Possible D-Link Router HNAP Protocol Security Bypass Attempt · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SERVER Possible D-Link Router HNAP Protocol Security Bypass Attempt";
    flow:established,to_server;
    urilen:7;
    http.method;
    content:"POST";
    http.uri;
    content:"/HNAP1/"; nocase; endswith; fast_pattern;
    http.header;
    content:"SOAPAction|3a 20|"; nocase;
    content:"/HNAP1/"; distance:0;
    pcre:"/^(?:set|get)/Ri";
    content:"DeviceSettings"; within:14;
    reference:url,www.securityfocus.com/bid/37690;
    classtype:web-application-attack;
    sid:2010698; rev:6;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Unknown, updated_at 2020_11_02;
)

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