CVE-2024-31678

9.8 CRITICAL

📋 TL;DR

This vulnerability allows attackers to execute arbitrary SQL commands through the password parameter in the login.php file of Sourcecodester Loan Management System v1.0. This affects all organizations using this specific version of the software, potentially leading to authentication bypass, data theft, or complete system compromise.

💻 Affected Systems

Products:
  • Sourcecodester Loan Management System
Versions: v1.0
Operating Systems: Any OS running PHP with database backend
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default installation and configuration of version 1.0. No special configuration is required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data exfiltration, authentication bypass for all users, privilege escalation to administrative access, and potential remote code execution on the underlying server.

🟠

Likely Case

Authentication bypass allowing unauthorized access to the loan management system, followed by data theft or manipulation of financial records.

🟢

If Mitigated

Limited impact if proper input validation and parameterized queries are implemented, potentially only causing login failures without data exposure.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

SQL injection in login pages is commonly exploited and requires minimal technical skill. The public GitHub issue demonstrates the vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not available

Vendor Advisory: Not available

Restart Required: No

Instructions:

1. Replace vulnerable login.php with secure version using parameterized queries. 2. Implement input validation for all user inputs. 3. Consider upgrading to a newer version if available from the vendor.

🔧 Temporary Workarounds

Web Application Firewall (WAF) Rules

all

Implement WAF rules to block SQL injection patterns in login requests

Input Validation Filter

all

Add server-side input validation to reject SQL special characters in password field

🧯 If You Can't Patch

  • Isolate the system from internet access and restrict to internal network only
  • Implement strict network segmentation and monitor all database queries from the application

🔍 How to Verify

Check if Vulnerable:

Test the login.php endpoint with SQL injection payloads in the password parameter (e.g., ' OR '1'='1)

Check Version:

Check the software version in the admin panel or by examining the source code files

Verify Fix Applied:

Attempt SQL injection payloads and verify they are rejected or properly escaped without affecting database queries

📡 Detection & Monitoring

Log Indicators:

  • Unusual SQL error messages in application logs
  • Multiple failed login attempts with SQL-like patterns
  • Successful logins from unexpected IP addresses

Network Indicators:

  • HTTP POST requests to login.php containing SQL keywords in parameters
  • Unusual database query patterns from the application server

SIEM Query:

source="web_logs" AND uri="/login.php" AND (password="*OR*" OR password="*UNION*" OR password="*SELECT*")

🔗 References

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