ET EXPLOIT Attempted Netgear Buffer Overflow into RCE Inbound M1

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/upgrade_check.cgi"; bsize:18;
http.content_len;
byte_test:0,>,4000,0,string,dec;
http.request_body;
content:"mknod|20 2f|dev/ptyp"; fast_pattern;
Raw source ET EXPLOIT Attempted Netgear Buffer Overflow into RCE Inbound M1 · 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 -> [$HTTP_SERVERS,$HOME_NET] any (
    msg:"ET EXPLOIT Attempted Netgear Buffer Overflow into RCE Inbound M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/upgrade_check.cgi"; bsize:18;
    http.content_len;
    byte_test:0,>,4000,0,string,dec;
    http.request_body;
    content:"mknod|20 2f|dev/ptyp"; fast_pattern;
    reference:url,github.com/grimm-co/NotQuite0dayFriday/blob/master/2020.06.15-netgear/exploit.py;
    classtype:attempted-admin;
    sid:2030630; rev:1;
    metadata:affected_product Netgear_Router, created_at 2020_07_31, deployment Perimeter, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_07_31;
)

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