CVE-2006-2705 in C5 Enterprise Vulnerability Management
Summary
by MITRE
Secure Elements Class 5 AVR server (aka C5 EVM) before 2.8.1 allows remote attackers to cause an unspecified denial of service via a large number of forged client registration messages.
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Analysis
by VulDB Data Team • 11/24/2024
The vulnerability identified as CVE-2006-2705 affects the Secure Elements Class 5 AVR server, also known as the C5 EVM platform, which represents a critical component in secure communication systems designed for enterprise and government applications. This particular implementation flaw exists in versions prior to 2.8.1 and demonstrates a fundamental weakness in the server's ability to handle client registration requests, creating a potential vector for remote exploitation that could severely impact system availability and operational integrity. The affected system operates within the context of secure communications infrastructure where maintaining continuous service availability is paramount for mission-critical operations.
The technical nature of this vulnerability stems from insufficient input validation and rate limiting mechanisms within the client registration processing logic. When the server receives an excessive number of forged client registration messages, it fails to properly handle the volume, leading to an unspecified denial of service condition that can effectively render the system unavailable to legitimate users. This weakness aligns with CWE-400, which categorizes improper handling of input data leading to resource exhaustion, and represents a classic example of a resource exhaustion attack pattern. The vulnerability exploits the server's lack of proper message filtering and authentication mechanisms, allowing malicious actors to flood the system with crafted registration requests that consume system resources without proper validation.
From an operational impact perspective, this vulnerability creates significant risk for organizations relying on the Secure Elements Class 5 AVR server for secure communications. The denial of service condition can disrupt critical business processes, compromise communication channels, and potentially expose sensitive data through system unavailability. Attackers can leverage this vulnerability to perform sustained attacks that exhaust server resources, leading to extended periods of service interruption that may affect multiple users and applications dependent on the system. The remote nature of the attack means that threat actors can exploit this weakness from anywhere on the network without requiring physical access or elevated privileges, making the vulnerability particularly dangerous in enterprise environments where system availability is crucial for business continuity.
The attack pattern associated with CVE-2006-2705 follows established methodologies described in the MITRE ATT&CK framework under the T1498 category for Network Denial of Service, where attackers target system resources to prevent legitimate users from accessing services. This vulnerability can be classified as a resource exhaustion attack that specifically targets the client registration functionality of the server. Organizations implementing the affected software should consider immediate remediation through patching to version 2.8.1 or later, which addresses the insufficient validation mechanisms and implements proper rate limiting to prevent abuse. Additional mitigations include network-level filtering to limit registration message frequency, implementing intrusion detection systems to monitor for unusual registration patterns, and establishing proper access controls to restrict unauthorized access to the registration interface. The vulnerability also highlights the importance of robust input validation and resource management in secure system design, emphasizing that even seemingly simple functions like client registration require comprehensive security consideration to prevent exploitation.