CVE-2020-12315
📋 TL;DR
A path traversal vulnerability in Intel EMA (Endpoint Management Assistant) allows unauthenticated attackers to access files outside intended directories via network requests. This affects all systems running Intel EMA before version 1.3.3, potentially enabling privilege escalation.
💻 Affected Systems
- Intel(R) Endpoint Management Assistant (EMA)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via privilege escalation to root/admin, allowing installation of persistent malware, data theft, and lateral movement.
Likely Case
Unauthenticated attackers reading sensitive system files, potentially obtaining credentials or configuration data for further attacks.
If Mitigated
Limited impact with proper network segmentation and access controls, potentially only information disclosure.
🎯 Exploit Status
Path traversal vulnerabilities typically have low exploitation complexity, especially with unauthenticated access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.3 or later
Vendor Advisory: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00412
Restart Required: Yes
Instructions:
1. Download Intel EMA version 1.3.3 or later from Intel's official website. 2. Stop the EMA service. 3. Install the updated version. 4. Restart the EMA service. 5. Verify the update completed successfully.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to Intel EMA service using firewall rules to only allow connections from trusted management systems.
# Example Linux iptables rule: iptables -A INPUT -p tcp --dport [EMA_PORT] -s [TRUSTED_IP] -j ACCEPT
# Example Windows firewall: New-NetFirewallRule -DisplayName 'Restrict EMA' -Direction Inbound -LocalPort [EMA_PORT] -RemoteAddress [TRUSTED_IP] -Action Allow
Service Disablement
allTemporarily disable Intel EMA service if not actively required for endpoint management.
# Linux: systemctl stop intel-ema
# Windows: Stop-Service -Name 'Intel EMA'
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Intel EMA systems from untrusted networks
- Deploy web application firewall (WAF) rules to block path traversal patterns in HTTP requests
🔍 How to Verify
Check if Vulnerable:
Check Intel EMA version. If version is below 1.3.3, the system is vulnerable.Check Version:
# Linux: intel-ema --version or check package manager
# Windows: Check installed programs list or service propertiesVerify Fix Applied:
Verify Intel EMA version is 1.3.3 or higher and test that path traversal attempts are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns in EMA logs
- Multiple failed path traversal attempts
- Access to system files from EMA process
Network Indicators:
- HTTP requests with '../' sequences to EMA service
- Unusual file read requests from untrusted IPs
SIEM Query:
source='intel_ema.log' AND (message LIKE '%..%' OR message LIKE '%../%')