CVE-2024-32293 in W30E
Summary
by MITRE • 04/17/2024
Tenda W30E v1.0 V1.0.1.25(633) firmware has a stack overflow vulnerability via the page parameter in the fromDhcpListClient function.
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Analysis
by VulDB Data Team • 03/17/2025
The vulnerability identified as CVE-2024-32293 represents a critical stack overflow condition within the Tenda W30E v1.0 V1.0.1.25(633) firmware implementation. This flaw manifests specifically through the page parameter handling within the fromDhcpListClient function, creating a pathway for remote code execution and system compromise. The vulnerability stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing, allowing malicious actors to craft specially crafted payloads that overflow the allocated stack space and potentially overwrite critical program execution flow control structures.
The technical exploitation of this vulnerability involves sending maliciously formatted requests to the affected device's web interface, specifically targeting the DHCP client list functionality. When the firmware processes the page parameter without proper bounds checking or input sanitization, it allows an attacker to exceed the allocated stack buffer size and overwrite adjacent memory locations. This type of vulnerability falls under CWE-121 Stack-based Buffer Overflow, which is classified as a high-severity issue in the Common Weakness Enumeration catalog. The attack vector is particularly concerning as it can be executed remotely without requiring physical access to the device, making it an attractive target for network-based exploitation.
From an operational impact perspective, this vulnerability compromises the integrity and availability of the affected wireless router, potentially allowing unauthorized users to gain administrative privileges, execute arbitrary code, or even permanently corrupt the device's firmware. The attack surface extends beyond simple privilege escalation as the compromised device could be used as a pivot point for broader network reconnaissance and lateral movement within the local network. Security professionals should note that this vulnerability aligns with ATT&CK technique T1210, which describes exploitation of remote services to gain system access, and T1059, which covers command and scripting interpreter usage for persistence and execution.
The mitigation strategies for this vulnerability should prioritize immediate firmware updates from Tenda's official sources, as the manufacturer has likely released patches addressing this specific stack overflow condition. Network administrators should implement network segmentation and access control measures to limit exposure, while also monitoring for suspicious network traffic patterns that might indicate exploitation attempts. Additional protective measures include disabling unnecessary web management interfaces, implementing network intrusion detection systems, and conducting regular vulnerability assessments to identify similar issues in other network devices. The vulnerability demonstrates the critical importance of proper input validation and memory management practices in embedded systems, particularly those handling network communications in consumer-grade networking equipment where security updates may not be regularly applied by end users.