CVE-2024-28020
📋 TL;DR
This vulnerability allows a malicious high-privileged user in FOXMAN-UN/UNEM applications to reuse passwords and login credentials through complex routines, potentially extending unauthorized access to servers and other services. It affects organizations using Hitachi Energy's FOXMAN-UN/UNEM application and server management systems.
💻 Affected Systems
- FOXMAN-UN
- UNEM
📦 What is this software?
Foxman Un by Hitachienergy
Foxman Un by Hitachienergy
Foxman Un by Hitachienergy
Foxman Un by Hitachienergy
Unem by Hitachienergy
Unem by Hitachienergy
Unem by Hitachienergy
Unem by Hitachienergy
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of server infrastructure and connected services, enabling lateral movement, data exfiltration, and persistent backdoor access across the network.
Likely Case
Unauthorized access escalation allowing attackers to gain control over additional systems and services beyond their intended privileges.
If Mitigated
Limited impact with proper access controls, monitoring, and credential management preventing successful exploitation.
🎯 Exploit Status
Exploitation requires existing high-privileged access and complex routines; not trivial but feasible for determined attackers
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Consult vendor advisory for specific patched versions
Vendor Advisory: https://publisher.hitachienergy.com/preview?DocumentId=8DBD000194&languageCode=en&Preview=true
Restart Required: Yes
Instructions:
1. Review Hitachi Energy advisory 8DBD000194 and 8DBD000201. 2. Apply vendor-provided patches. 3. Restart affected services/systems. 4. Verify patch application.
🔧 Temporary Workarounds
Strict Access Control Enforcement
allImplement least privilege principles and monitor high-privileged user activities
Credential Management Hardening
allEnforce strong, unique passwords and implement multi-factor authentication where possible
🧯 If You Can't Patch
- Isolate affected systems from critical infrastructure and implement network segmentation
- Enhance monitoring of high-privileged user activities and credential usage patterns
🔍 How to Verify
Check if Vulnerable:
Check system version against vendor advisory and review configuration for password reuse vulnerabilitiesCheck Version:
Consult vendor documentation for version checking commandsVerify Fix Applied:
Verify patch version installation and test credential reuse scenarios📡 Detection & Monitoring
Log Indicators:
- Unusual credential reuse patterns
- Multiple authentication attempts from same high-privileged account to different services
- Access to systems beyond normal user scope
Network Indicators:
- Unexpected connections from management systems to additional services
- Authentication traffic anomalies
SIEM Query:
source="FOXMAN-UN" OR source="UNEM" AND (event_type="authentication" AND user_privilege="high" AND destination_service_changed=true)🔗 References
- https://publisher.hitachienergy.com/preview?DocumentId=8DBD000194&languageCode=en&Preview=true
- https://publisher.hitachienergy.com/preview?DocumentId=8DBD000201&languageCode=en&Preview=true
- https://publisher.hitachienergy.com/preview?DocumentId=8DBD000194&languageCode=en&Preview=true
- https://publisher.hitachienergy.com/preview?DocumentId=8DBD000201&languageCode=en&Preview=true
