ET WEB_SPECIFIC_APPS Microsoft Purview Authorized Server-Side Request Forgery (CVE-2025-21385)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.host; dotprefix;
content:".purview.azure.com"; fast_pattern;
http.content_type;
content:"application/json";
http.request_body; strip_whitespace;
content:"|22|callback|22 3a|";
target:dest_ip;
Raw source ET WEB_SPECIFIC_APPS Microsoft Purview Authorized Server-Side Request Forgery (CVE-2025-21385) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Microsoft Purview Authorized Server-Side Request Forgery (CVE-2025-21385)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.host; dotprefix;
    content:".purview.azure.com"; fast_pattern;
    http.content_type;
    content:"application/json";
    http.request_body; strip_whitespace;
    content:"|22|callback|22 3a|";
    reference:url,github.com/Pauloxc6/CVE-2025-21385/;
    reference:cve,2025-21385;
    classtype:web-application-attack;
    sid:2060021; rev:2;
    metadata:attack_target Server, tls_state TLSDecrypt, created_at 2025_02_10, cve CVE_2025_21385, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, updated_at 2026_07_30, 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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