ET WEB_SPECIFIC_APPS SolarWinds Web Help Desk Unauthenticated Remote Code Execution via Java Deserialization (CVE-2025-40551)


Query · suricata

flow:established,to_server;
http.uri;
content:"/helpdesk/WebObjects/Helpdesk.woa/wo/"; fast_pattern;
pcre:"/^[\d\.]+/R";
http.request_body;
content:"|22|java|2e|";
pcre:"/^[^\x22]*?(?:parentpopup|wonoselectionstring|dummy|mdssubmitlink|mdsform__enterkeypressed|mdsform__shiftkeypressed|mdsform__altkeypressed|_csrf)/R";
content:"|22|method|22 3a|";
content:"|22|wopage|2e|"; within:9;
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS SolarWinds Web Help Desk Unauthenticated Remote Code Execution via Java Deserialization (CVE-2025-40551) · 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_SPECIFIC_APPS SolarWinds Web Help Desk Unauthenticated Remote Code Execution via Java Deserialization (CVE-2025-40551)";
    flow:established,to_server;
    http.uri;
    content:"/helpdesk/WebObjects/Helpdesk.woa/wo/"; fast_pattern;
    pcre:"/^[\d\.]+/R";
    http.request_body;
    content:"|22|java|2e|";
    pcre:"/^[^\x22]*?(?:parentpopup|wonoselectionstring|dummy|mdssubmitlink|mdsform__enterkeypressed|mdsform__shiftkeypressed|mdsform__altkeypressed|_csrf)/R";
    content:"|22|method|22 3a|";
    content:"|22|wopage|2e|"; within:9;
    reference:url,horizon3.ai/attack-research/cve-2025-40551-another-solarwinds-web-help-desk-deserialization-issue/;
    reference:cve,2025-40551;
    classtype:web-application-attack;
    sid:2067189; rev:1;
    metadata:affected_product SolarWinds, attack_target Server, tls_state TLSDecrypt, created_at 2026_01_29, cve CVE_2025_40551, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2026_01_29, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)

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