CVE-2024-56133 in LoadMaster
Summary
by MITRE • 02/05/2025
Improper Input Validation vulnerability of Authenticated User in Progress LoadMaster allows : OS Command Injection.
This issue affects:
Product
Affected Versions
LoadMaster
From 7.2.55.0 to 7.2.60.1 (inclusive)
From 7.2.49.0 to 7.2.54.12 (inclusive)
7.2.48.12 and all prior versions
ECS
All prior versions to 7.2.60.1 (inclusive)
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Analysis
by VulDB Data Team • 07/31/2025
The CVE-2024-56133 vulnerability represents a critical security flaw in Progress LoadMaster appliances that enables authenticated users to execute arbitrary operating system commands through improper input validation. This vulnerability falls under the CWE-20 category for improper input validation, which is a fundamental security weakness that allows malicious inputs to bypass validation mechanisms and potentially execute unintended code within the target system. The vulnerability specifically affects the LoadMaster load balancing platform, which is widely deployed in enterprise environments for traffic management and application delivery.
The technical flaw manifests when authenticated users submit specially crafted inputs that are not properly validated or sanitized before being processed by the system. This improper validation allows attackers to inject OS commands that are subsequently executed with the privileges of the affected service account. The vulnerability is particularly dangerous because it requires only authenticated access, meaning that an attacker who has obtained valid credentials can leverage this weakness to escalate their privileges and potentially gain full system control. The attack vector involves manipulating input fields within the LoadMaster management interface or API endpoints that handle user-supplied data.
The operational impact of this vulnerability is severe and multifaceted across enterprise environments that utilize Progress LoadMaster appliances. Organizations may face complete system compromise, data exfiltration, and disruption of critical network services that rely on these load balancers for traffic distribution. The vulnerability affects multiple version ranges including LoadMaster 7.2.55.0 through 7.2.60.1, 7.2.49.0 through 7.2.54.12, and all prior versions including 7.2.48.12, indicating a widespread exposure across several major releases. This affects not only the core LoadMaster product but also the ECS (Enterprise Control System) components, which suggests the vulnerability extends throughout the product ecosystem. The potential for privilege escalation means that attackers could gain administrative access to network infrastructure, potentially allowing them to redirect traffic, monitor communications, or disable critical services.
Organizations should implement immediate mitigations including applying the latest security patches from Progress Software, which addresses the input validation deficiencies in the affected versions. Network segmentation and access controls should be strengthened to limit authenticated access to LoadMaster appliances, particularly for users who do not require full administrative privileges. The principle of least privilege should be enforced by restricting user accounts to only the necessary permissions required for their operational functions. Additionally, organizations should conduct comprehensive network monitoring to detect potential exploitation attempts and implement intrusion detection systems that can identify suspicious command execution patterns. Security teams should also perform thorough vulnerability assessments of their LoadMaster deployments and consider implementing web application firewalls to filter malicious inputs before they reach the vulnerable components. This vulnerability aligns with ATT&CK techniques related to privilege escalation and command execution, making it a critical concern for organizations following standard cybersecurity frameworks and compliance requirements.