CVE-2024-56135 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-2024-56135 vulnerability represents a critical improper input validation flaw within the Progress LoadMaster application that enables authenticated users to execute arbitrary operating system commands. This vulnerability falls under the CWE-20 category, which specifically addresses improper input validation as a fundamental security weakness that can lead to various injection attacks. The flaw exists in the LoadMaster load balancing appliance and its associated ECS (Enterprise Control System) components, creating a significant risk for organizations relying on these systems for network traffic management and security.
The technical implementation of this vulnerability stems from inadequate sanitization of user inputs within the authenticated administrative interface of the LoadMaster system. When an authenticated user submits maliciously crafted input through specific parameters, the system fails to properly validate or escape these inputs before processing them within the operating system context. This allows attackers who have gained legitimate administrative access to escalate their privileges and execute arbitrary commands on the underlying operating system, potentially compromising the entire appliance and connected network infrastructure. The vulnerability affects multiple version ranges including LoadMaster versions 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 and earlier releases, indicating a widespread issue across the product lineage.
The operational impact of this vulnerability extends beyond simple command execution, as it provides attackers with full system control capabilities that align with the MITRE ATT&CK framework's T1059.001 technique for command and script execution. An attacker with valid administrative credentials could leverage this vulnerability to install backdoors, exfiltrate sensitive data, modify system configurations, or establish persistent access to the network infrastructure. The affected ECS components further amplify the risk as they typically serve as centralized management interfaces for multiple LoadMaster appliances, potentially allowing a single compromised administrative account to affect entire network domains. Organizations utilizing these systems face potential data breaches, service disruptions, and complete system compromise that could impact business continuity and regulatory compliance.
Mitigation strategies for CVE-2024-56135 should prioritize immediate patching of all affected LoadMaster and ECS versions to the latest available releases that contain the necessary input validation fixes. System administrators should implement strict access controls and principle of least privilege policies to limit the number of users with administrative credentials, thereby reducing the attack surface. Network segmentation and monitoring solutions should be deployed to detect anomalous command execution patterns that might indicate exploitation attempts. Additionally, organizations should conduct comprehensive security assessments of their LoadMaster implementations, review audit logs for any suspicious activity, and implement continuous vulnerability scanning to identify similar weaknesses in their infrastructure. The remediation process should also include disabling unnecessary administrative functions and implementing multi-factor authentication for all administrative accounts to provide additional layers of protection against unauthorized access.