CVE-2023-7109
📋 TL;DR
This critical SQL injection vulnerability in Library Management System 2.0 allows attackers to execute arbitrary SQL commands via the username parameter in the admin login page. Remote attackers can potentially bypass authentication, access sensitive database information, or compromise the entire system. All deployments of Library Management System 2.0 with the vulnerable /admin/login.php file are affected.
💻 Affected Systems
- code-projects Library Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including database exfiltration, privilege escalation to admin, and potential remote code execution leading to full server takeover.
Likely Case
Authentication bypass allowing unauthorized admin access, followed by data theft or manipulation of library records and user information.
If Mitigated
Limited impact with proper input validation and WAF rules blocking SQL injection patterns, though system remains vulnerable to sophisticated attacks.
🎯 Exploit Status
Public exploit code exists in GitHub repositories, making this easily weaponizable by attackers with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None known
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative library management software or implementing custom fixes with proper input validation and parameterized queries.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize username input and block SQL injection patterns
Modify /admin/login.php to add: $username = mysqli_real_escape_string($connection, $_POST['username']);
WAF Rule Implementation
linuxDeploy web application firewall rules to block SQL injection attempts
Add mod_security rule: SecRule ARGS:username "@detectSQLi" "id:1001,phase:2,deny,status:403"
🧯 If You Can't Patch
- Isolate the system behind a reverse proxy with strict input validation
- Implement network segmentation to limit database access from the web application server
🔍 How to Verify
Check if Vulnerable:
Test the /admin/login.php endpoint with SQL injection payloads like: username=admin' OR '1'='1Check Version:
Check source code or documentation for version 2.0 referencesVerify Fix Applied:
Attempt SQL injection after implementing fixes and verify proper error handling and blocked requests📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts with SQL syntax in username field
- Unusual database query patterns from web server
Network Indicators:
- HTTP POST requests to /admin/login.php containing SQL keywords like UNION, SELECT, OR
SIEM Query:
source="web_logs" AND uri="/admin/login.php" AND (username="*' OR*" OR username="*UNION*" OR username="*SELECT*")🔗 References
- https://github.com/h4md153v63n/CVEs/blob/main/Library-Management-System/Library-Management-System_SQL_Injection-1.md
- https://vuldb.com/?ctiid.249004
- https://vuldb.com/?id.249004
- https://github.com/h4md153v63n/CVEs/blob/main/Library-Management-System/Library-Management-System_SQL_Injection-1.md
- https://vuldb.com/?ctiid.249004
- https://vuldb.com/?id.249004
