alert ftp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL FTP format string attempt"; flow:to_server,established; content:"%p"; nocase; reference:nessus,10452; reference:bugtraq,1387; reference:bugtraq,2240; reference:bugtraq,726; reference:cve,2000-0573; reference:cve,1999-0997; classtype:attempted-admin; sid:2101530; rev:14; metadata:created_at 2010_09_23, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)