CVE-2024-56131
📋 TL;DR
An authenticated user can execute arbitrary operating system commands on Progress LoadMaster due to improper input validation. This affects LoadMaster, Multi-Tenant Hypervisor, and ECS products across multiple vulnerable versions. Attackers with valid credentials can potentially gain full system control.
💻 Affected Systems
- LoadMaster
- Multi-Tenant Hypervisor
- ECS
📦 What is this software?
Loadmaster by Progress
Loadmaster by Progress
Loadmaster by Progress
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal sensitive data, deploy ransomware, or pivot to other network systems.
Likely Case
Authenticated attackers gaining shell access to the LoadMaster system, potentially modifying configurations, intercepting traffic, or installing backdoors.
If Mitigated
Limited impact if strong authentication controls, network segmentation, and command execution restrictions are properly implemented.
🎯 Exploit Status
Requires authenticated access. Attack complexity is medium due to authentication requirement but command injection is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: LoadMaster 7.2.60.2 or later; Multi-Tenant Hypervisor 7.1.35.13 or later; ECS 7.2.60.2 or later
Vendor Advisory: https://community.progress.com/s/article/LoadMaster-Security-Vulnerability-CVE-2024-56131-CVE-2024-56132-CVE-2024-56133-CVE-2024-56134-CVE-2024-56135
Restart Required: No
Instructions:
1. Backup current configuration. 2. Download latest firmware from Progress support portal. 3. Apply firmware update through LoadMaster web interface. 4. Verify update completed successfully.
🔧 Temporary Workarounds
Restrict User Access
allLimit authenticated user accounts to only essential personnel and implement strong authentication controls.
Network Segmentation
allIsolate LoadMaster systems from critical network segments and implement strict firewall rules.
🧯 If You Can't Patch
- Implement strict access controls and multi-factor authentication for all LoadMaster administrative accounts
- Deploy network-based intrusion detection systems to monitor for command injection attempts and unusual system commands
🔍 How to Verify
Check if Vulnerable:
Check current LoadMaster version via web interface: System Configuration > System Administration > System InformationCheck Version:
ssh admin@loadmaster-ip 'cat /etc/version' or check web interfaceVerify Fix Applied:
Verify version is 7.2.60.2 or later for LoadMaster, 7.1.35.13 or later for Multi-Tenant Hypervisor, or 7.2.60.2 or later for ECS📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by successful login
- Unexpected system process creation
Network Indicators:
- Unusual outbound connections from LoadMaster system
- Traffic patterns inconsistent with normal load balancing operations
SIEM Query:
source="loadmaster" AND (event_type="command_execution" OR process_name="sh" OR process_name="bash")