CVE-2024-3413

7.3 HIGH

📋 TL;DR

This critical SQL injection vulnerability in SourceCodester Human Resource Information System 1.0 allows attackers to execute arbitrary SQL commands via the login form. Remote attackers can potentially bypass authentication, access sensitive HR data, or compromise the database server. Organizations using this specific HRIS version are affected.

💻 Affected Systems

Products:
  • SourceCodester Human Resource Information System
Versions: 1.0
Operating Systems: All platforms running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the login_process.php file specifically. Any deployment of version 1.0 is vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete database compromise leading to data theft, privilege escalation, and potential server takeover via SQL injection to RCE chaining.

🟠

Likely Case

Authentication bypass allowing unauthorized access to HR systems and sensitive employee data exfiltration.

🟢

If Mitigated

Limited impact with proper input validation and database permissions preventing successful exploitation.

🌐 Internet-Facing: HIGH - Attack can be initiated remotely without authentication, making internet-facing instances extremely vulnerable.
🏢 Internal Only: MEDIUM - Internal systems still vulnerable but attack surface is reduced compared to internet-facing deployments.

🎯 Exploit Status

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

Exploit details are publicly available on GitHub, making this easily exploitable by attackers with basic SQL injection knowledge.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available

Restart Required: No

Instructions:

No official patch available. Consider migrating to alternative HRIS solutions or implementing custom fixes with proper input validation and parameterized queries.

🔧 Temporary Workarounds

Web Application Firewall (WAF)

all

Deploy WAF rules to block SQL injection patterns targeting login_process.php

Input Validation Filter

all

Add input validation to sanitize hr_email and hr_password parameters

Modify initialize/login_process.php to add: $email = mysqli_real_escape_string($conn, $_POST['hr_email']); $password = mysqli_real_escape_string($conn, $_POST['hr_password']);

🧯 If You Can't Patch

  • Isolate the HRIS system behind a VPN or internal network only
  • Implement strict network segmentation and monitor all traffic to/from the HRIS server

🔍 How to Verify

Check if Vulnerable:

Check if file initialize/login_process.php exists and contains unsanitized $_POST variables for hr_email/hr_password

Check Version:

Check application version in admin panel or readme files

Verify Fix Applied:

Test login form with SQL injection payloads like ' OR '1'='1 and verify they are rejected

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed login attempts with SQL syntax in parameters
  • Unusual database queries from web server process

Network Indicators:

  • HTTP POST requests to login_process.php containing SQL keywords
  • Abnormal database traffic patterns

SIEM Query:

source="web_logs" AND uri="*/login_process.php" AND (request_body LIKE "%' OR '%" OR request_body LIKE "%UNION%" OR request_body LIKE "%SELECT%" OR request_body LIKE "%--%" OR request_body LIKE "%/*%*/%")

🔗 References

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