ET EXPLOIT Nagios XI Post-Auth Path Traversal (CVE-2021-37343)

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (
    msg:"ET EXPLOIT Nagios XI Post-Auth Path Traversal (CVE-2021-37343)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/nagiosxi/includes/components/autodiscovery/?mode=newjob"; fast_pattern;
    http.request_body;
    content:"job=|2e 2e 2f|";
    reference:url,claroty.com/2021/09/21/blog-research-securing-network-management-systems-nagios-xi/;
    reference:cve,2021-37343;
    classtype:attempted-admin;
    sid:2034017; rev:2;
    metadata:affected_product Nagios, created_at 2021_09_23, cve CVE_2021_37343, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_11_26, mitre_tactic_id TA0007, mitre_tactic_name Discovery, mitre_technique_id T1083, mitre_technique_name File_And_Directory_Discovery;
    target:dest_ip;
)