CVE-2024-37641 in TEW-814DAP
Summary
by MITRE • 06/14/2024
TRENDnet TEW-814DAP v1_(FW1.01B01) was discovered to contain a stack overflow via the submit-url parameter at /formNewSchedule
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Analysis
by VulDB Data Team • 05/28/2025
The vulnerability identified as CVE-2024-37641 affects TRENDnet TEW-814DAP wireless access point devices running firmware version 1.01B01. This issue manifests as a stack overflow condition that occurs when processing the submit-url parameter within the /formNewSchedule web interface endpoint. The affected device is a consumer-grade wireless access point that typically operates in home or small office environments, making it a potential target for attackers seeking to compromise network infrastructure. The stack overflow vulnerability represents a critical security flaw that can lead to arbitrary code execution and complete system compromise.
The technical implementation of this vulnerability stems from inadequate input validation within the web application layer of the device firmware. When an attacker crafts a malicious payload containing an overly long string in the submit-url parameter, the device fails to properly bounds-check the input before copying it to a fixed-size buffer on the stack. This classic buffer overflow condition occurs because the application does not verify that the input length exceeds the allocated buffer space, allowing the overflow to overwrite adjacent stack memory locations. The vulnerability falls under CWE-121 Stack-based Buffer Overflow, which is classified as a critical weakness in software security. The attack vector is particularly concerning as it operates through the web interface, requiring no physical access to the device and potentially enabling remote exploitation.
The operational impact of this vulnerability extends beyond simple device compromise, as it can enable attackers to gain full administrative control over the wireless access point. Once exploited, an attacker could modify network configurations, redirect traffic through malicious servers, or establish persistent backdoors within the network infrastructure. The compromised device could then serve as a pivot point for lateral movement attacks against other networked devices, potentially leading to complete network infiltration. This vulnerability particularly affects environments where the wireless access point serves as a primary network gateway or where it connects to sensitive internal systems. The device's web interface provides a convenient attack surface since it allows configuration changes through HTTP requests, making it susceptible to various injection attacks and exploitation techniques.
Mitigation strategies for this vulnerability require immediate firmware updates from TRENDnet, as the manufacturer must address the underlying buffer overflow condition through proper input validation and bounds checking. Network administrators should implement network segmentation to limit the potential impact of exploitation, ensuring that wireless access points are isolated from critical network segments. Additionally, implementing web application firewalls and network monitoring solutions can help detect and block malicious requests targeting the vulnerable /formNewSchedule endpoint. The vulnerability aligns with ATT&CK technique T1210 Exploitation of Remote Services, where attackers leverage web application vulnerabilities to gain unauthorized access to network devices. Organizations should also consider disabling unnecessary web interfaces on network devices and implementing strict access controls to prevent unauthorized configuration changes. Regular vulnerability assessments and firmware update procedures are essential to maintain device security posture and prevent exploitation of similar buffer overflow vulnerabilities in network infrastructure equipment.