alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"GPL FTP STOU overflow attempt"; flow:established,to_server; content:"STOU"; nocase; isdataat:100,relative; pcre:"/^STOU\s[^\n]{100}/smi"; reference:bugtraq,8315; reference:cve,2003-0466; classtype:attempted-admin; sid:2102390; rev:6; metadata:created_at 2010_09_23, cve CVE_2003_0466, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_08;)