ET EXPLOIT NetGear R6700v3 upnpd Buffer Overflow Inbound (CVE-2022-27643)

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.header;
content:"SOAPAction|3a|"; nocase;
content:"urn:NETGEARROUTER:service:ParentalControl:1#Authenticate"; fast_pattern; nocase;
pcre:"/^SOAPAction\x3a\s?urn\x3aNETGEARROUTER\x3aservice\x3aParentalControl\x3a1#Authenticate/Hmi";
http.request_body;
content:"<NewMACAddress>"; nocase;
pcre:"/^[^<]{30,}<\/NewMACAddress>/Ri";
Raw source ET EXPLOIT NetGear R6700v3 upnpd Buffer Overflow Inbound (CVE-2022-27643) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET EXPLOIT NetGear R6700v3 upnpd Buffer Overflow Inbound (CVE-2022-27643)";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.header;
    content:"SOAPAction|3a|"; nocase;
    content:"urn:NETGEARROUTER:service:ParentalControl:1#Authenticate"; fast_pattern; nocase;
    pcre:"/^SOAPAction\x3a\s?urn\x3aNETGEARROUTER\x3aservice\x3aParentalControl\x3a1#Authenticate/Hmi";
    http.request_body;
    content:"<NewMACAddress>"; nocase;
    pcre:"/^[^<]{30,}<\/NewMACAddress>/Ri";
    reference:url,blog.relyze.com/2022/03/cve-2022-27643-netgear-r6700v3-upnpd.html;
    reference:cve,2022-27643;
    classtype:attempted-admin;
    sid:2035717; rev:1;
    metadata:attack_target Networking_Equipment, created_at 2022_04_03, cve CVE_2022_27643, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, updated_at 2022_04_03;
)

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