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;)