ET WEB_SPECIFIC_APPS BMC FootPrints aspnetconfig __VIEWSTATE Parameter Unsafe Deserialization Remote Code Execution Attempt (CVE-2025-71260)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS BMC FootPrints aspnetconfig __VIEWSTATE Parameter Unsafe Deserialization Remote Code Execution Attempt (CVE-2025-71260)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri; bsize:36;
    content:"/footprints/servicedesk/aspnetconfig"; fast_pattern;
    http.cookie;
    content:"SEC_TOKEN|3d|"; startswith;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name|3d 22 5d 5d|VIEWSTATE|22|";
    content:"rO0"; within:20;
    reference:url,labs.watchtowr.com/thanks-itsms-threat-actors-have-never-been-so-organized-bmc-footprints-pre-auth-remote-code-execution-chains/;
    reference:cve,2025-71260;
    reference:cve,2025-21760;
    classtype:attempted-admin;
    sid:2068320; rev:1;
    metadata:affected_product BMC_FootPrints, attack_target Server, tls_state TLSDecrypt, created_at 2026_03_18, cve CVE_2025_21760, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Exploit, updated_at 2026_03_18, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)