Rule History

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SERVER Attempt To Access MSSQL xp_fileexist Stored Procedure Via URI to Locate Files On Disk"; flow:established,to_server; http.uri; content:"EXEC"; nocase; content:"xp_fileexist"; nocase; reference:url,www.mssqlcity.com/Articles/Undoc/UndocExtSP.htm; reference:url,www.dugger-it.com/articles/xp_fileexist.asp; reference:url,www.sql-server-performance.com/articles/dev/extended_stored_procedures_p1.aspx; classtype:web-application-attack; sid:2009819; rev:8; metadata:created_at 2010_07_30, signature_severity Minor, updated_at 2020_09_14;)