ET EXPLOIT Redfish Exploitation Attempt (CVE-2022-40259)

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT Redfish Exploitation Attempt (CVE-2022-40259)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/redfish/v1/Registries/1"; startswith;
    content:"|3b|curl|24 7b|IFS|7d|"; fast_pattern;
    content:"|7c|bash|3b 2e|json"; endswith;
    reference:url,eclypsium.com/2022/12/05/supply-chain-vulnerabilities-put-server-ecosystem-at-risk;
    classtype:attempted-admin;
    sid:2041931; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_12_06, cve CVE_2022_40259, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_06;
)