CVE-2020-35296
📋 TL;DR
ThinkAdmin v6 has hardcoded default administrator credentials that allow attackers to gain full administrative dashboard access. This affects all installations of ThinkAdmin v6 that haven't changed these credentials, potentially compromising the entire application.
💻 Affected Systems
- ThinkAdmin
📦 What is this software?
Thinkadmin by Thinkadmin
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with attackers gaining full administrative control, allowing data theft, code execution, and system destruction.
Likely Case
Unauthorized administrative access leading to data exposure, configuration changes, and potential privilege escalation to underlying systems.
If Mitigated
Limited impact with proper credential management and network segmentation preventing exploitation.
🎯 Exploit Status
Attackers can simply use default credentials to log in without any special tools or techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: https://github.com/zoujingli/ThinkAdmin
Restart Required: No
Instructions:
1. Change default administrator credentials immediately. 2. Review and update all user accounts with strong, unique passwords.
🔧 Temporary Workarounds
Change Default Credentials
allImmediately change the default administrator username and password to strong, unique credentials.
Implement Access Controls
allRestrict administrative dashboard access to specific IP addresses or networks only.
🧯 If You Can't Patch
- Implement network segmentation to isolate ThinkAdmin from critical systems
- Enable multi-factor authentication if supported by the application
🔍 How to Verify
Check if Vulnerable:
Attempt to log into the ThinkAdmin dashboard using default credentials (commonly admin/admin or similar).Check Version:
Check application configuration files or documentation for version information.Verify Fix Applied:
Verify that default credentials no longer work and only authorized credentials provide access.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by successful login with default credentials
- Administrative actions from unexpected IP addresses
Network Indicators:
- Unauthorized access to administrative endpoints
- Suspicious traffic patterns to admin dashboard
SIEM Query:
source="thinkadmin" AND (event="login_success" AND user="admin") OR (event="failed_login" AND user="admin")🔗 References
- https://github.com/Shrimant12/CVE-References/blob/main/CVE-2020-35296.md
- https://github.com/zoujingli/ThinkAdmin
- https://smshrimant.com/admin-panel-access-using-default-credentials/
- https://github.com/Shrimant12/CVE-References/blob/main/CVE-2020-35296.md
- https://github.com/zoujingli/ThinkAdmin
- https://smshrimant.com/admin-panel-access-using-default-credentials/
