ET EXPLOIT D-Link - RCE Attempt Inbound (CVE-2021-45382)

Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:"/ddns_check.ccp"; fast_pattern;
http.request_body;
content:"&ddnsHostName=";
pcre:"/^(?:\x3b|\x0a|\x26|\x60|\x7c|\x24)/R";
Raw source ET EXPLOIT D-Link - RCE Attempt Inbound (CVE-2021-45382) · 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 D-Link - RCE Attempt Inbound (CVE-2021-45382)";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:"/ddns_check.ccp"; fast_pattern;
    http.request_body;
    content:"&ddnsHostName=";
    pcre:"/^(?:\x3b|\x0a|\x26|\x60|\x7c|\x24)/R";
    reference:cve,2021-45382;
    classtype:attempted-admin;
    sid:2035747; rev:1;
    metadata:attack_target Networking_Equipment, created_at 2022_04_05, cve CVE_2021_45382, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag CISA_KEV, updated_at 2022_04_05;
)

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