CVE-2022-36504 in Magic NX18 Plus
Summary
by MITRE • 08/25/2022
H3C Magic NX18 Plus NX18PV100R003 was discovered to contain a stack overflow via the function Edit_BasicSSID.
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Analysis
by VulDB Data Team • 06/17/2025
The vulnerability identified as CVE-2022-36504 affects the H3C Magic NX18 Plus NX18PV100R003 wireless access point device, representing a critical stack overflow condition that arises within the Edit_BasicSSID function. This issue demonstrates a fundamental flaw in input validation and memory management within the device's firmware, specifically targeting the wireless network configuration interface. The vulnerability occurs when the device processes user-supplied data through the Edit_BasicSSID function, which fails to properly validate the length and content of incoming parameters, creating an exploitable condition that can lead to arbitrary code execution or system compromise.
The technical exploitation of this stack overflow vulnerability follows standard patterns associated with buffer overflow conditions, where malicious input can overwrite adjacent memory locations on the stack. This particular implementation flaw falls under the Common Weakness Enumeration category of CWE-121, which describes stack-based buffer overflow conditions, and may also align with CWE-787, representing out-of-bounds write vulnerabilities. The vulnerability exists in the device's wireless configuration management subsystem, specifically when handling SSID (Service Set Identifier) parameters during basic configuration editing operations. Attackers can potentially leverage this flaw to execute arbitrary code with the privileges of the affected service, potentially gaining full control over the wireless access point and its network operations.
The operational impact of this vulnerability extends beyond simple device compromise, as it can enable attackers to manipulate wireless network configurations, potentially disrupting network services, establishing persistent access points, or creating backdoor entry mechanisms. The affected device operates in a network environment where wireless access points serve as critical infrastructure components, making this vulnerability particularly dangerous for enterprise and industrial networks. The vulnerability affects wireless network security posture by allowing unauthorized modification of network parameters, potentially enabling man-in-the-middle attacks, unauthorized network access, or disruption of legitimate network services. Network administrators should be particularly concerned about the potential for attackers to modify wireless credentials, disable security features, or redirect network traffic through compromised access points.
Mitigation strategies for CVE-2022-36504 should prioritize immediate firmware updates from H3C, as the vendor would have likely released patches addressing the buffer overflow condition within the Edit_BasicSSID function. Network segmentation and access controls should be implemented to limit direct administrative access to wireless access points, reducing the attack surface for exploitation. Monitoring network traffic for unusual SSID modifications or configuration changes can help detect potential exploitation attempts. The vulnerability aligns with ATT&CK technique T1059.007, which covers command and scripting interpreter usage, and potentially T1566.001 related to spearphishing attachments, as attackers might attempt to exploit this vulnerability through network-based attacks. Organizations should also consider implementing network-based intrusion detection systems to monitor for exploitation attempts and maintain detailed audit logs of wireless configuration changes to enable forensic analysis should compromise occur.