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Portswigger/SQLi-Labs/Lab3.md
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Portswigger/SQLi-Labs/Lab3.md
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# Portswigger SQLi-Lab 3
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## SQL injection UNION attack, retrieving data from other tables
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This lab is continuation from the previous sqli labs and in this we have to retieve the data from `users` table having column names `username` and `password` knowing that the GET paramter `category` is vulnerable to sqli , since the tables are changed we may have to know columns from "ORDERY BY" query in sqli
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<img src="https://imgur.com/ltZhhSB.png"/>
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Trying to find the column number using `order by`
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<img src="https://i.imgur.com/F2MKc0M.png"/>
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<img src="https://i.imgur.com/HAnkhSD.png"/>
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<img src="https://i.imgur.com/y4wQtUN.png"/>
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So we have only 2 columns in the table
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<img src="https://i.imgur.com/y4wQtUN.png"/>
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Since we know the table name we can grab data from it using the column names which are also known
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<img src="https://i.imgur.com/el1tCAd.png"/>
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With this we can grab the usernames and passwords from table
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<img src="https://i.imgur.com/w5u7Fu5.png"/>
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<img src="https://imgur.com/QPnmTi4.png"/>
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Now in order to complete this lab we need to login as `adminstartor` so we have his password we just need to login , so going to `My Account`
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<img src="https://i.imgur.com/8sPMgEF.png"/>
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<img src="https://imgur.com/9YDpoez.png"/>
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<img src="https://i.imgur.com/Mu3pG9L.png"/>
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And we are done with this lab !
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