CVE-2024-1826
📋 TL;DR
This critical SQL injection vulnerability in code-projects Library System 1.0 allows attackers to execute arbitrary SQL commands through the student login page. Remote attackers can potentially access, modify, or delete database contents. All deployments of Library System 1.0 with the vulnerable login.php file are affected.
💻 Affected Systems
- code-projects Library System
📦 What is this software?
Library System by Code Projects
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data theft, data destruction, authentication bypass, and potential server takeover via SQL injection leading to remote code execution.
Likely Case
Unauthorized access to student records, personal information exposure, and potential privilege escalation within the library system.
If Mitigated
Limited impact with proper input validation and database permissions, potentially only error messages or failed login attempts visible.
🎯 Exploit Status
Public exploit available on GitHub, SQL injection via username/password parameters requires minimal technical skill
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
1. Download and examine the exploit PoC from GitHub references
2. Manually patch login.php to implement parameterized queries or proper input sanitization
3. Replace all direct SQL concatenation with prepared statements
4. Test login functionality thoroughly after changes
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy WAF rules to block SQL injection patterns in login requests
Input Validation Filter
allAdd PHP input validation before SQL processing
// Add to login.php before SQL execution:
$username = mysqli_real_escape_string($conn, $_POST['username']);
$password = mysqli_real_escape_string($conn, $_POST['password']);
🧯 If You Can't Patch
- Isolate the library system behind a firewall with strict network access controls
- Implement rate limiting and monitoring on the login endpoint to detect brute force or injection attempts
🔍 How to Verify
Check if Vulnerable:
Test login.php with SQL injection payloads like ' OR '1'='1 in username/password fields and observe database errors or unexpected behaviorCheck Version:
Check file headers or project documentation for version informationVerify Fix Applied:
Attempt SQL injection payloads after patching - should receive generic login failure messages without database errors📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax in login attempts
- Multiple failed logins with special characters
- Database error messages in application logs
Network Indicators:
- HTTP POST requests to login.php containing SQL keywords (UNION, SELECT, INSERT, etc.)
- Abnormal request patterns to student login endpoint
SIEM Query:
source="web_logs" AND uri="/Source/librarian/user/student/login.php" AND (request_body CONTAINS "UNION" OR request_body CONTAINS "SELECT" OR request_body CONTAINS "' OR '")🔗 References
- https://github.com/jxp98/VulResearch/blob/main/2024/02/3Library%20System%20In%20PHP%20-%20SQL%20Injection-student_login.md
- https://vuldb.com/?ctiid.254614
- https://vuldb.com/?id.254614
- https://github.com/jxp98/VulResearch/blob/main/2024/02/3Library%20System%20In%20PHP%20-%20SQL%20Injection-student_login.md
- https://vuldb.com/?ctiid.254614
- https://vuldb.com/?id.254614
