CVE-2024-44565 in AX1806
Summary
by MITRE • 08/26/2024
Tenda AX1806 v1.0.0.1 contains a stack overflow via the serverName parameter in the function form_fast_setting_internet_set.
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Analysis
by VulDB Data Team • 08/27/2024
The vulnerability identified as CVE-2024-44565 represents a critical stack overflow condition within the Tenda AX1806 router firmware version 1.0.0.1. This flaw exists in the form_fast_setting_internet_set function where the serverName parameter is processed without adequate input validation or bounds checking. The stack overflow vulnerability occurs when an attacker crafts a maliciously formatted serverName value that exceeds the allocated buffer space, leading to potential memory corruption and arbitrary code execution. This type of vulnerability falls under CWE-121 Stack-based Buffer Overflow, which is classified as a fundamental memory safety issue that has been consistently exploited in network device firmware. The vulnerability directly impacts the router's web-based administration interface, making it accessible through standard HTTP requests that are typically used for configuring internet settings.
The operational impact of this vulnerability extends beyond simple denial of service scenarios as it provides a potential pathway for remote code execution on affected devices. When an attacker successfully exploits this stack overflow, they can overwrite critical memory locations including return addresses and function pointers, potentially allowing them to execute malicious code with the privileges of the web server process. This could enable attackers to gain full control over the router, modify network configurations, redirect traffic through malicious proxies, or establish persistent backdoors. The vulnerability is particularly concerning because it affects a widely deployed consumer-grade router model, increasing the potential attack surface significantly. The attack vector requires no authentication, making it particularly dangerous as it can be exploited by remote attackers without prior access credentials.
Mitigation strategies for CVE-2024-44565 should prioritize immediate firmware updates from Tenda, as this represents the most effective defense against exploitation. Network administrators should implement network segmentation and access control measures to limit exposure of affected devices to untrusted networks. The vulnerability aligns with ATT&CK technique T1059.007 Command and Scripting Interpreter: JavaScript, as exploitation may involve crafting malicious JavaScript payloads that trigger the buffer overflow during web interface processing. Additionally, implementing intrusion detection systems that monitor for unusual HTTP request patterns targeting the specific form_fast_setting_internet_set endpoint can help identify potential exploitation attempts. Organizations should also consider disabling unnecessary web management interfaces when not actively configuring devices, and implementing network monitoring to detect anomalous traffic patterns that may indicate exploitation attempts. The vulnerability demonstrates the critical importance of input validation in network device firmware, as proper bounds checking and parameter validation would prevent the buffer overflow condition from occurring in the first place.