CVE-2024-56133
📋 TL;DR
This CVE-2024-56133 is an authenticated OS command injection vulnerability in Progress LoadMaster load balancers. It allows authenticated users to execute arbitrary operating system commands on affected LoadMaster appliances. The vulnerability affects LoadMaster versions up to 7.2.60.1 and ECS versions prior to 7.2.60.1.
💻 Affected Systems
- Progress LoadMaster
- Progress LoadMaster 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 with LoadMaster privileges, potentially leading to data theft, service disruption, or lateral movement within the network.
Likely Case
Authenticated attackers gaining shell access to LoadMaster appliances, enabling configuration manipulation, credential harvesting, or deployment of persistence mechanisms.
If Mitigated
Limited impact due to proper network segmentation, strong authentication controls, and monitoring preventing successful exploitation attempts.
🎯 Exploit Status
Requires authenticated access to LoadMaster web interface or API. Attack complexity is medium due to authentication requirement but exploitation is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: LoadMaster 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 LoadMaster 7.2.60.2 or later from Progress support portal. 3. Upload and apply firmware update via LoadMaster web interface. 4. Verify update completed successfully.
🔧 Temporary Workarounds
Restrict User Access
allLimit administrative access to only trusted users and implement strong authentication controls.
Network Segmentation
allIsolate LoadMaster management interfaces from untrusted networks and implement strict firewall rules.
🧯 If You Can't Patch
- Implement strict access controls and multi-factor authentication for all LoadMaster administrative accounts
- Monitor LoadMaster logs for unusual command execution patterns and implement network segmentation
🔍 How to Verify
Check if Vulnerable:
Check LoadMaster version via web interface: System > System Configuration > System Information. Compare version against affected ranges.Check Version:
Via SSH: cat /var/run/version.txt or via web interface navigationVerify Fix Applied:
Verify version is 7.2.60.2 or later in System > System Configuration > System Information. Test input validation in authenticated interfaces.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by successful login
- Unexpected process creation or system modifications
Network Indicators:
- Unusual outbound connections from LoadMaster appliances
- Suspicious traffic patterns to/from management interfaces
SIEM Query:
source="loadmaster" AND (event_type="command_execution" OR process="unusual" OR user="suspicious")