ET WEB_SERVER Microsoft IIS Web Deploy Remote Code Execution via Insecure Deserialization (CVE-2025-53772)

Query · suricata

flow:established,to_server;
http.uri;
content:"/msdeploy.axd"; startswith;
http.header;
content:"MSDeploy.Method|3a 20|Sync";
content:"MSDeploy.SyncOptions|3a 20|H4sIA"; fast_pattern;
target:dest_ip;
Raw source ET WEB_SERVER Microsoft IIS Web Deploy Remote Code Execution via Insecure Deserialization (CVE-2025-53772) · 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 any (
    msg:"ET WEB_SERVER Microsoft IIS Web Deploy Remote Code Execution via Insecure Deserialization (CVE-2025-53772)";
    flow:established,to_server;
    http.uri;
    content:"/msdeploy.axd"; startswith;
    http.header;
    content:"MSDeploy.Method|3a 20|Sync";
    content:"MSDeploy.SyncOptions|3a 20|H4sIA"; fast_pattern;
    reference:url,hawktrace.com/blog/cve-2025-53772;
    reference:cve,2025-53772;
    classtype:web-application-attack;
    sid:2065401; rev:1;
    metadata:affected_product Microsoft_IIS, attack_target Server, tls_state TLSDecrypt, created_at 2025_10_27, cve CVE_2025_53772, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.