CVE-2024-9079: Student Record System SQL Injection Flaw

CVE-2024-9079 Overview

A critical SQL injection vulnerability has been identified in Code-Projects Student Record System version 1.0. This issue affects the processing of the file /marks.php, where improper handling of the coursename parameter allows remote attackers to inject malicious SQL commands. The attack can be initiated remotely without authentication, potentially allowing unauthorized access to sensitive student data stored in the backend database.

Critical Impact

Remote attackers can exploit this SQL injection vulnerability to extract, modify, or delete sensitive student records from the database without authentication.

Affected Products

• Code-Projects Student Record System 1.0

Discovery Timeline

• 2024-09-22 - CVE-2024-9079 published to NVD
• 2024-09-26 - Last updated in NVD database

Technical Details for CVE-2024-9079

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) exists in the /marks.php file of the Student Record System application. The vulnerability occurs because the application fails to properly sanitize or parameterize user-supplied input in the coursename parameter before incorporating it into SQL queries. This allows an attacker to inject arbitrary SQL code that will be executed by the database server.

The network-based attack vector means that exploitation can occur remotely over the internet without requiring any user interaction or authentication. Given the nature of student record systems containing personally identifiable information (PII), successful exploitation could lead to unauthorized access to sensitive academic records, personal student information, and potentially enable further attacks against the underlying database infrastructure.

Root Cause

The root cause of this vulnerability is insufficient input validation and the lack of parameterized queries or prepared statements in the /marks.php file. When the coursename parameter is received from user input, it is directly concatenated into SQL query strings without proper sanitization or escaping. This classic SQL injection pattern allows attackers to break out of the intended query structure and execute arbitrary SQL commands.

Attack Vector

The vulnerability is exploited via network-based requests to the /marks.php endpoint. An attacker can manipulate the coursename parameter by injecting SQL metacharacters and malicious SQL statements. The injected payload is then interpreted by the database engine as part of the legitimate query, allowing the attacker to bypass authentication, extract data, modify records, or potentially execute administrative operations depending on the database user privileges.

The exploit has been publicly disclosed, increasing the risk of widespread exploitation. Due to the nature of this vulnerability, no synthetic code examples are provided. For technical details, refer to the GitHub Issue Discussion and VulDB #278249.

Detection Methods for CVE-2024-9079

Indicators of Compromise

• Unusual or malformed HTTP requests to /marks.php containing SQL metacharacters such as single quotes, double dashes, or UNION statements in the coursename parameter
• Database error messages appearing in web application responses indicating SQL syntax errors
• Unexpected database queries or access patterns in database audit logs
• Large data exfiltration or bulk SELECT queries targeting student records tables

Detection Strategies

• Implement web application firewall (WAF) rules to detect SQL injection patterns in requests targeting /marks.php
• Monitor HTTP request logs for suspicious payloads containing SQL keywords (UNION, SELECT, INSERT, DELETE, DROP, OR 1=1)
• Enable database query logging and alert on queries with abnormal syntax or unexpected statement combinations
• Deploy intrusion detection systems (IDS) with SQL injection signature detection capabilities

Monitoring Recommendations

• Configure real-time alerting for any access attempts to /marks.php with non-alphanumeric characters in the coursename parameter
• Establish baseline database access patterns and alert on deviations that may indicate data exfiltration
• Monitor for authentication bypass attempts and unauthorized access to student records
• Review web server access logs regularly for reconnaissance and exploitation attempts

How to Mitigate CVE-2024-9079

Immediate Actions Required

• Remove or disable the vulnerable Student Record System application from production until a patch is available
• Implement input validation on the coursename parameter to allow only expected characters
• Deploy a web application firewall with SQL injection protection rules in front of the application
• Review database permissions and limit the application's database user privileges to minimum required access

Patch Information

No vendor patch is currently available for this vulnerability. The application maintainer at Code-Projects has not released an official security update. Organizations using this software should consider the workarounds below and monitor the vendor for future updates.

Workarounds

• Implement parameterized queries or prepared statements in the /marks.php file to prevent SQL injection
• Add server-side input validation to whitelist acceptable characters for the coursename parameter
• Deploy a reverse proxy or WAF with SQL injection filtering capabilities
• Consider replacing the vulnerable application with a more secure student record management solution
• If the application must remain online, restrict access to trusted IP addresses only

# Example WAF rule for ModSecurity to block SQL injection in coursename parameter
SecRule ARGS:coursename "@rx (?i)(\b(select|union|insert|update|delete|drop|truncate|alter|exec|execute|xp_|sp_|0x)\b|--|;|')" \
    "id:100001,phase:2,deny,status:403,msg:'SQL Injection attempt blocked in coursename parameter'"