CVE-2020-7148
📋 TL;DR
This CVE describes a critical expression language injection vulnerability in HPE Intelligent Management Center (iMC) that allows remote attackers to execute arbitrary code. Attackers can exploit this vulnerability without authentication to gain complete control of affected systems. Organizations running iMC PLAT versions prior to 7.3 (E0705P07) are affected.
💻 Affected Systems
- HPE Intelligent Management Center (iMC)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to install malware, steal sensitive data, pivot to other systems, and maintain persistent access to the network.
Likely Case
Remote code execution leading to data exfiltration, ransomware deployment, or use as a foothold for lateral movement within the network.
If Mitigated
Limited impact if network segmentation prevents access to vulnerable systems and proper monitoring detects exploitation attempts.
🎯 Exploit Status
The vulnerability allows remote code execution without authentication, making it highly attractive to attackers. While no public PoC is confirmed, the nature of the vulnerability suggests exploitation is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: iMC PLAT 7.3 (E0705P07) or later
Vendor Advisory: https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbnw04036en_us
Restart Required: Yes
Instructions:
1. Download the patch from HPE Support Center. 2. Backup your iMC configuration and database. 3. Apply the patch following HPE's installation guide. 4. Restart the iMC services. 5. Verify the patch was successfully applied.
🔧 Temporary Workarounds
Network Segmentation
allIsolate iMC systems from untrusted networks and restrict access to authorized IP addresses only.
# Configure firewall rules to restrict access to iMC ports (e.g., 8080, 8443)
# Example: iptables -A INPUT -p tcp --dport 8080 -s trusted_ip_range -j ACCEPT
# Example: iptables -A INPUT -p tcp --dport 8080 -j DROP
Access Control
allImplement strict network access controls to limit who can reach the iMC management interface.
# Use network ACLs or firewall rules to restrict access
# Example Windows: netsh advfirewall firewall add rule name="Block iMC" dir=in action=block protocol=TCP localport=8080,8443 remoteip=any
🧯 If You Can't Patch
- Immediately isolate the iMC system from all untrusted networks and implement strict network segmentation
- Implement application-level monitoring and intrusion detection specifically for iMC systems to detect exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check the iMC version in the web interface under Help > About or run the version check command on the server.Check Version:
On Windows: Check iMC installation directory for version files. On Linux: Check /opt/iMC/ directory or run ps aux | grep imc to identify version information.Verify Fix Applied:
Verify the version is iMC PLAT 7.3 (E0705P07) or later and test that the patch was applied successfully through HPE's verification procedures.📡 Detection & Monitoring
Log Indicators:
- Unusual expression language patterns in iMC logs
- Unexpected process execution from iMC services
- Authentication bypass attempts in access logs
Network Indicators:
- Unusual outbound connections from iMC servers
- Exploit kit traffic patterns targeting iMC ports
- Command and control communication from iMC systems
SIEM Query:
source="iMC_logs" AND ("expression language" OR "EL injection" OR suspicious_command_execution)