ET WEB_SPECIFIC_APPS Possible SharePoint RCE Attempt (CVE-2019-0604)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"Picker.aspx?PickerDialogType=Microsoft.SharePoint"; nocase;
http.request_body;
content:"ctl00|25|24PlaceHolderDialogBodySection|25|24ctl05|25|24hiddenSpanData|3d5f5f|"; nocase; fast_pattern;
Raw source ET WEB_SPECIFIC_APPS Possible SharePoint RCE Attempt (CVE-2019-0604) · Suricata
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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 -> $HTTP_SERVERS any (
    msg:"ET WEB_SPECIFIC_APPS Possible SharePoint RCE Attempt (CVE-2019-0604)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"Picker.aspx?PickerDialogType=Microsoft.SharePoint"; nocase;
    http.request_body;
    content:"ctl00|25|24PlaceHolderDialogBodySection|25|24ctl05|25|24hiddenSpanData|3d5f5f|"; nocase; fast_pattern;
    reference:url,www.zerodayinitiative.com/blog/2019/3/13/cve-2019-0604-details-of-a-microsoft-sharepoint-rce-vulnerability;
    classtype:attempted-admin;
    sid:2027345; rev:4;
    metadata:attack_target Web_Server, created_at 2019_05_10, cve CVE_2019_0604, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag CISA_KEV, updated_at 2020_09_02;
)

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