CVE-2016-4057 in FusionCompute
Summary
by MITRE
Huawei FusionCompute before V100R005C10SPC700 allows remote authenticated users to cause a denial of service (resource consumption) via a large number of crafted packets.
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Analysis
by VulDB Data Team • 08/26/2022
The vulnerability identified as CVE-2016-4057 affects Huawei FusionCompute versions prior to V100R005C10SPC700, representing a significant security weakness in virtualization infrastructure management. This issue manifests as a denial of service condition that can be triggered by authenticated remote attackers who craft and transmit excessive packets to the affected system. The flaw resides in how the platform processes incoming network traffic, specifically failing to properly validate or limit the volume of packets that can be processed within a given timeframe. Such a vulnerability directly impacts the availability and stability of virtualized environments managed by Huawei FusionCompute, potentially disrupting critical business operations that depend on these virtualization platforms.
The technical implementation of this vulnerability stems from insufficient input validation mechanisms within the network packet processing components of Huawei FusionCompute. When legitimate authenticated users send large volumes of crafted packets to the system, the platform's resource management mechanisms fail to adequately throttle or reject excessive traffic patterns, leading to resource exhaustion. This behavior aligns with common denial of service attack patterns where attackers exploit implementation flaws to consume system resources such as memory, CPU cycles, or network bandwidth. The vulnerability demonstrates a classic lack of rate limiting and traffic shaping capabilities that should be inherent in robust network infrastructure components, particularly those handling authenticated user sessions.
From an operational perspective, the impact of this vulnerability extends beyond simple service disruption to potentially compromise entire virtualized datacenter environments. Organizations relying on Huawei FusionCompute for their virtual infrastructure may experience cascading failures as system resources become consumed, leading to performance degradation or complete system unavailability. The authenticated nature of the attack means that attackers must first establish valid credentials, which could be obtained through various means including credential theft, insider threats, or exploitation of other vulnerabilities within the network perimeter. This makes the vulnerability particularly concerning as it can be exploited by compromised internal users or those with legitimate access rights who wish to disrupt services.
The mitigation strategies for CVE-2016-4057 primarily involve applying the vendor-provided security patches and updates that address the specific resource consumption issue in affected Huawei FusionCompute versions. Organizations should also implement network-level controls including ingress filtering, rate limiting, and traffic monitoring to detect and prevent abnormal packet patterns that could indicate exploitation attempts. Additionally, implementing proper access controls and credential management practices can reduce the attack surface by limiting who can successfully execute the denial of service attack. This vulnerability relates to CWE-400, which covers "Uncontrolled Resource Consumption," and aligns with ATT&CK technique T1499.004, "Endpoint Denial of Service," demonstrating how resource exhaustion attacks can be leveraged to compromise system availability in virtualized environments.