CVE-2022-37087 in H200
Summary
by MITRE • 08/25/2022
H3C H200 H200V100R004 was discovered to contain a stack overflow via the function SetMobileAPInfoById.
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Analysis
by VulDB Data Team • 10/01/2022
The vulnerability identified as CVE-2022-37087 affects H3C H200 and H200V100R004 devices, representing a critical stack overflow condition within the mobile access point configuration functionality. This issue manifests through the SetMobileAPInfoById function, which processes incoming data without adequate bounds checking or input validation mechanisms. The stack overflow vulnerability occurs when malformed or excessively long input data is passed to this function, potentially allowing attackers to overwrite adjacent memory locations on the stack. Such memory corruption can lead to arbitrary code execution or system crashes, compromising the device's operational integrity and network security posture.
The technical implementation of this vulnerability stems from insufficient input validation within the mobile access point management interface of the H3C device firmware. The SetMobileAPInfoById function fails to properly sanitize or limit the length of input parameters, creating an exploitable condition where attackers can craft malicious payloads that exceed the allocated stack buffer space. This flaw aligns with CWE-121, which describes stack-based buffer overflow conditions, and represents a classic example of improper input validation in network device firmware. The vulnerability exists at the application layer of the device's software stack, specifically within the mobile access point configuration handler that manages wireless network settings and user-defined parameters.
Operationally, this vulnerability poses significant risks to organizations relying on H3C H200 devices for network infrastructure management. An attacker who successfully exploits this stack overflow could gain unauthorized access to the device's administrative functions, potentially leading to complete system compromise. The attack surface is particularly concerning as it may allow remote code execution without requiring authentication, especially if the vulnerable function is accessible through network interfaces such as web management portals or API endpoints. This vulnerability could enable attackers to establish persistent access points within the network, facilitate lateral movement, or disrupt critical network services that depend on these devices for wireless connectivity and management functions.
The exploitation of this vulnerability requires careful crafting of input data that specifically targets the stack buffer allocated for the SetMobileAPInfoById function. Attackers may leverage this condition to execute malicious code with the privileges of the affected service or process, potentially escalating to system-level access. Given that H3C devices are commonly deployed in enterprise and industrial environments, the impact extends beyond simple device compromise to potential disruption of critical business operations and network availability. The vulnerability's presence in firmware versions H200V100R004 indicates that this issue affects a specific release cycle, making it essential for administrators to verify their device versions and apply appropriate security patches from H3C.
Organizations should implement immediate mitigations including firmware updates from H3C that address the stack overflow condition through proper input validation and buffer management. Network segmentation and access controls should be enforced to limit exposure of vulnerable devices to untrusted networks. Monitoring for anomalous network traffic patterns or unauthorized configuration changes may help detect exploitation attempts. The vulnerability demonstrates the importance of secure coding practices in embedded network devices and highlights the need for regular security assessments of firmware components. Security teams should also consider implementing intrusion detection systems that can identify potential exploitation attempts targeting known buffer overflow conditions in network infrastructure devices. Compliance with industry standards such as NIST SP 800-53 and ISO/IEC 27001 requires organizations to maintain updated security configurations and address known vulnerabilities promptly to maintain acceptable risk levels for their network infrastructure.