CVE-2020-35276
📋 TL;DR
CVE-2020-35276 is a critical SQL injection vulnerability in EgavilanMedia ECM Address Book 1.0 that allows attackers to bypass authentication and gain full administrative access. This affects all organizations using this specific version of the address book software. Attackers can add or remove users and potentially access sensitive address book data.
💻 Affected Systems
- EgavilanMedia ECM Address Book
📦 What is this software?
Ecm Address Book by Egavilanmedia
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the address book system, unauthorized administrative access, data theft or destruction, and potential lateral movement to connected systems.
Likely Case
Unauthorized administrative access leading to data manipulation, user account compromise, and potential exposure of sensitive contact information.
If Mitigated
Limited impact if proper network segmentation, WAF rules, and input validation are implemented, though the core vulnerability remains.
🎯 Exploit Status
SQL injection in authentication bypass is a well-known attack pattern with readily available tools and techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official vendor advisory found
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
Web Application Firewall (WAF) Rules
allImplement WAF rules to block SQL injection patterns in authentication requests
Network Segmentation
allRestrict access to the address book application to only authorized users/networks
🧯 If You Can't Patch
- Isolate the system from internet access and restrict to internal networks only
- Implement strict input validation and parameterized queries in custom code if possible
🔍 How to Verify
Check if Vulnerable:
Test authentication endpoint with SQL injection payloads or check if running version 1.0 of EgavilanMedia ECM Address BookCheck Version:
Check application version in admin panel or configuration filesVerify Fix Applied:
Verify that SQL injection attempts no longer bypass authentication and that proper input validation is implemented📡 Detection & Monitoring
Log Indicators:
- Unusual SQL syntax in authentication logs
- Multiple failed login attempts followed by successful admin login from unusual IP
- SQL error messages in application logs
Network Indicators:
- SQL injection patterns in HTTP POST requests to login endpoints
- Unusual database queries originating from web application
SIEM Query:
source="web_logs" AND (uri_path="/login" OR uri_path="/admin") AND (message="' OR '1'='1" OR message="UNION SELECT" OR message="SQL syntax")🔗 References
- http://ecm.com
- http://egavilanmedia.com
- https://hardik-solanki.medium.com/authentication-admin-panel-bypass-which-leads-to-full-admin-access-control-c10ec4ab4255
- http://ecm.com
- http://egavilanmedia.com
- https://hardik-solanki.medium.com/authentication-admin-panel-bypass-which-leads-to-full-admin-access-control-c10ec4ab4255
