CVE-2021-22514
📋 TL;DR
A critical remote code execution vulnerability in Micro Focus Application Performance Management allows unauthenticated attackers to execute arbitrary code on affected systems. This affects APM versions 9.40, 9.50, and 9.51 installations, potentially giving attackers complete control over vulnerable servers.
💻 Affected Systems
- Micro Focus Application Performance Management
📦 What is this software?
Application Performance Management by Microfocus
View all CVEs affecting Application Performance Management →
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install malware, steal sensitive data, pivot to internal networks, and establish persistent backdoors.
Likely Case
Attackers deploy ransomware, cryptocurrency miners, or data exfiltration tools on vulnerable APM servers.
If Mitigated
Limited impact through network segmentation and strict access controls preventing exploitation attempts.
🎯 Exploit Status
CVSS 9.8 with Attack Vector: Network and Attack Complexity: Low suggests relatively easy exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply patches referenced in KM03806649 advisory
Vendor Advisory: https://softwaresupport.softwaregrp.com/doc/KM03806649
Restart Required: Yes
Instructions:
1. Review KM03806649 advisory. 2. Download appropriate patches from Micro Focus support portal. 3. Apply patches following vendor instructions. 4. Restart APM services. 5. Verify patch application.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to APM servers to only trusted management networks
Use firewall rules to block external access to APM ports
Implement network segmentation/VLAN isolation
Access Control Lists
allImplement strict IP-based access controls for APM management interfaces
Configure web server/IP restrictions for APM web interface
Use application firewalls to filter requests
🧯 If You Can't Patch
- Immediately isolate affected systems from internet and untrusted networks
- Implement strict network monitoring and intrusion detection for APM servers
🔍 How to Verify
Check if Vulnerable:
Check APM version via web interface or configuration files - if version is 9.40, 9.50, or 9.51, system is vulnerable.Check Version:
Check APM web interface > About or examine APM installation directory version filesVerify Fix Applied:
Verify APM version has been updated beyond affected versions and check patch logs in APM administration console.📡 Detection & Monitoring
Log Indicators:
- Unusual process execution from APM services
- Suspicious network connections originating from APM servers
- Unexpected file modifications in APM directories
Network Indicators:
- Unusual outbound connections from APM servers
- Exploit attempt patterns in web server logs
- Anomalous traffic to/from APM management ports
SIEM Query:
source="apm_logs" AND (process_execution="*cmd*" OR process_execution="*powershell*" OR process_execution="*bash*")