CVE-2020-20012
📋 TL;DR
WebPlus Pro v1.4.7.8.4-01 has an incorrect access control vulnerability (CWE-22) that allows attackers to bypass authentication or authorization mechanisms. This affects all systems running this specific version of WebPlus Pro. The CVSS 9.8 score indicates critical severity with network-based exploitation possible without authentication.
💻 Affected Systems
- WebPlus Pro
📦 What is this software?
Webplus Pro by Sudytech
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing unauthorized access to sensitive data, administrative functions, or potential remote code execution.
Likely Case
Unauthorized access to protected resources, data exfiltration, or privilege escalation within the application.
If Mitigated
Limited impact with proper network segmentation, strong authentication, and monitoring in place.
🎯 Exploit Status
References suggest exploitation details are publicly available; CWE-22 typically involves path traversal or similar access control bypasses.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor for updated version. 2. If unavailable, upgrade to latest supported version. 3. Apply security patches if provided.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to WebPlus Pro to trusted IPs only
iptables -A INPUT -p tcp --dport [PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [PORT] -j DROP
Web Application Firewall
allDeploy WAF with rules to block path traversal and access control bypass attempts
🧯 If You Can't Patch
- Isolate the system in a segmented network with strict access controls
- Implement additional authentication layers and monitor all access attempts
🔍 How to Verify
Check if Vulnerable:
Check WebPlus Pro version in admin interface or configuration files; verify if running v1.4.7.8.4-01Check Version:
Check application configuration or admin panel for version informationVerify Fix Applied:
Test authentication and authorization controls; attempt to access restricted resources without proper credentials📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts
- Failed authentication followed by successful resource access
- Unusual file or directory access patterns
Network Indicators:
- HTTP requests attempting path traversal patterns
- Access to protected URLs without authentication headers
SIEM Query:
source="webplus_logs" AND (event="unauthorized_access" OR url="*../*")