CVE-2020-23980
📋 TL;DR
CVE-2020-23980 is a critical SQL injection vulnerability in DesignMasterEvents Conference management software version 1.0.0. Attackers can inject malicious SQL commands through the administrator login page's username field, potentially bypassing authentication and accessing sensitive database information. Organizations using this specific version of the conference management system are affected.
💻 Affected Systems
- DesignMasterEvents Conference management system
📦 What is this software?
Conference Management by Designmasterevents
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the database including extraction of all user credentials, personal data, and conference information; potential remote code execution on the underlying server.
Likely Case
Authentication bypass leading to unauthorized administrative access, data exfiltration of user information and conference details.
If Mitigated
Limited impact with proper input validation and parameterized queries preventing successful exploitation.
🎯 Exploit Status
Exploit details and proof-of-concept code are publicly available on security research sites, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available, or implement workarounds and consider replacing the software.
🔧 Temporary Workarounds
Implement Input Validation
allAdd server-side input validation to sanitize username field inputs before processing SQL queries.
Modify login.php or equivalent to add: $username = mysqli_real_escape_string($connection, $_POST['username']);
Use Parameterized Queries
allReplace direct SQL string concatenation with prepared statements using parameterized queries.
Replace: $query = "SELECT * FROM users WHERE username='" . $username . "' AND password='" . $password . "'"; with: $stmt = $conn->prepare("SELECT * FROM users WHERE username=? AND password=?"); $stmt->bind_param("ss", $username, $password);
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with SQL injection rules to block malicious requests.
- Restrict network access to the application to only trusted IP addresses and implement strong authentication mechanisms.
🔍 How to Verify
Check if Vulnerable:
Test the login page with SQL injection payloads like: admin' OR '1'='1 in the username field and observe if authentication bypass occurs.Check Version:
Check the software version in the admin panel or configuration files; look for version 1.0.0 in the source code or documentation.Verify Fix Applied:
After implementing fixes, retest with SQL injection payloads to confirm they are properly rejected or sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts with SQL-like patterns in username field
- Successful logins from unexpected IP addresses
Network Indicators:
- HTTP POST requests to login.php with SQL injection payloads in parameters
- Unusual database query patterns from the application server
SIEM Query:
source="web_logs" AND (url="/admin/login.php" OR url="/login.php") AND (username="*' OR*" OR username="*'--*" OR username="*'/*")🔗 References
- https://cxsecurity.com/issue/WLB-2020030177
- https://packetstormsecurity.com/files/156959/DesignMasterEvents-CMS-1.0-SQL-Injection-Cross-Site-Scripting.html
- https://cxsecurity.com/issue/WLB-2020030177
- https://packetstormsecurity.com/files/156959/DesignMasterEvents-CMS-1.0-SQL-Injection-Cross-Site-Scripting.html
