Code-projects School Fees Payment System V1.0 /student.php SQL injection

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Code-projects School Fees Payment System V1.0 /student.php SQL injection

NAME OF AFFECTED PRODUCT(S)

• School Fees Payment System

Vendor Homepage

• https://code-projects.org/school-fees-payment-system-in-php-with-source-code/

AFFECTED AND/OR FIXED VERSION(S)

Submitter

• DS_Leo

Vulnerable File

• /student.php

VERSION(S)

• V1.0

Software Link

• https://download-media.code-projects.org/2020/02/SCHOOL_FEES_PAYMENT_SYSTEM_IN_PHP_WITH_SOURCE_CODE.zip

PROBLEM TYPE

Vulnerability Type

• SQL injection

Root Cause

• A SQL injection vulnerability was found in the '/student.php' file of the 'School Fees Payment System' project. The reason for this issue is that attackers inject malicious code from the parameter 'id' and use it directly in SQL queries without the need for appropriate cleaning or validation. This allows attackers to forge input values, thereby manipulating SQL queries and performing unauthorized operations.

Impact

• Attackers can exploit this SQL injection vulnerability to achieve unauthorized database access, sensitive data leakage, data tampering, comprehensive system control, and even service interruption, posing a serious threat to system security and business continuity.

DESCRIPTION

• During the security review of "School Fees Payment System",I discovered a critical SQL injection vulnerability in the "/student.php" file. This vulnerability stems from insufficient user input validation of the 'id' parameter, allowing attackers to inject malicious SQL queries. Therefore, attackers can gain unauthorized access to databases, modify or delete data, and access sensitive information. Immediate remedial measures are needed to ensure system security and protect data integrity.

NO LOGIN OR AUTHORIZATION IS REQUIRED TO EXPLOIT THIS VULNERABILITY

VULNERABILITY DETAILS AND POC

Vulnerability Location:

• 'id' parameter

Payload:

Parameter: id (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: action=delete&id=13' AND (SELECT 2336 FROM (SELECT(SLEEP(5)))bjGy)-- JzXU

PROOF OF CONCEPT

Source Code Tracing

• Within the file designated as "/student.php", the application assembles SQL statements by integrating user-supplied input, thereby enabling the potential execution of malevolent SQL statement payloads directly within the database.

Vulnerability Recurrence

sqlmap -u "http://192.168.184.133/student.php?action=delete&id=13" --level 5 --dbs