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;)