CVE-2020-11796
📋 TL;DR
CVE-2020-11796 is an insecure password authentication implementation in JetBrains Space that allows attackers to bypass authentication mechanisms. This affects all JetBrains Space instances running versions through April 22, 2020. Attackers could potentially gain unauthorized access to sensitive systems and data.
💻 Affected Systems
- JetBrains Space
📦 What is this software?
Space by Jetbrains
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Space instance leading to unauthorized access to all data, privilege escalation, and potential lateral movement within connected systems.
Likely Case
Unauthorized access to user accounts, exposure of sensitive information, and potential manipulation of Space data and configurations.
If Mitigated
Limited impact with proper network segmentation, strong access controls, and monitoring in place to detect authentication anomalies.
🎯 Exploit Status
Authentication bypass vulnerabilities are typically easy to exploit once the method is understood.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 2020-04-22
Vendor Advisory: https://blog.jetbrains.com/blog/2020/04/22/jetbrains-security-bulletin-q1-2020/
Restart Required: Yes
Instructions:
1. Update JetBrains Space to version released after April 22, 2020. 2. Restart the Space service. 3. Verify authentication mechanisms are functioning correctly.
🔧 Temporary Workarounds
Network Isolation
allRestrict access to JetBrains Space instance to trusted networks only
Multi-factor Authentication
allImplement additional authentication factors for critical accounts
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure
- Enable comprehensive logging and monitoring for authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check Space version in admin interface or via API. If version date is 2020-04-22 or earlier, system is vulnerable.Check Version:
Check Space admin dashboard or use Space API endpoint for version informationVerify Fix Applied:
Verify Space version is updated to post-April 22, 2020 release and test authentication mechanisms.📡 Detection & Monitoring
Log Indicators:
- Unusual authentication patterns
- Failed login attempts from unexpected locations
- Successful logins without proper credential validation
Network Indicators:
- Authentication requests bypassing normal flow
- Unusual API calls to authentication endpoints
SIEM Query:
source="space" AND (event_type="auth" OR event_type="login") AND result="success" AND user_agent!="expected_pattern"