This is an interesting site for any web or database developer. With this in mind I've had a go at screening all input lines into my app with the following: 

      if ( $_ =~ /$(\#|--|\/\*|\*\/|IF\s|ELSE\s|\s+\s|\s\|\|\s|CONCAT\
+(|\sCHAR(|\sLOAD_FILE\(0x633A5C626F6F742E696E69\)|ASCII()|DELETE\s|DR
+OP\s|UPDATE\s|EXEC\s|EXECUTE\s|DECALRE\s|master\.\.sysmessages|master
+\.\.sysservers|masters\.\.sysxlogins|sys\.sql_logins|INSERT\s|CREATE\
+s|SELECT\s|MERGE\s|JOIN\s|UNION\s|\sOR\s|\sHAVING\s|\sINTO\s|\sORDER\
+s|\sBY\s|\sSUM\(|\sWHERE\s|SHUTDOWN\s|SUBSTRING\(|NOT\sIN\(|ISNULL\(|
+WAIT\sFOR\sDELAY\s|BENCHMARK\(\)|\sTOP\s|MD5\(|SHA1\(|CHAR\(|PASSWORD
+\(|ENCODE\(|COMPRESS\(|BENCHMARK\(|ROW_COUNT\(|SCHEMA\(|VERSION\(|xp_
+cmdshell|xp_regread|xp_regaddmultistring|xp_regdeletekey|xp_regdelete
+value|xp_regenumkeys|xp_regenumvalues|xp_regread|xp_regremovemultistr
+ing|xp_regwrite|xp_regread|xp_regenumvalues|xp_servicecontrol|xp_avai
+lablemedia|xp_enumdsn|xp_loginconfig|xp_makecab|xp_ntsec_enumdomains|
+xp_terminate_process|sp_addextendedproc|xp_webserver|sp_makewebtask|\
+@\@|/)/i ) {  #  For Details of the kind of injection attacks this li
+ne is designed to stop:   http://ferruh.mavituna.com/makale/sql-injec
+tion-cheatsheet/#SyntaxBasicAttacks
    
    print "There is a possible injection attack attempt here"; ## Secu
+rity function here  I would like an email to be sent with details
    die;
      }

[download]
I think there is room for a Perl module that can screen against all attacks through stored procedures of any database app.

In reply to Preventing injection attacks by Win

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