CVE-2024-32314 in AC500
Summary
by MITRE • 04/17/2024
Tenda AC500 V2.0.1.9(1307) firmware contains a command injection vulnerablility in the formexeCommand function via the cmdinput parameter.
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Analysis
by VulDB Data Team • 03/18/2025
The vulnerability identified as CVE-2024-32314 affects the Tenda AC500 V2.0.1.9(1307) wireless router firmware, presenting a critical command injection flaw within the formexeCommand function. This vulnerability specifically manifests through the cmdinput parameter, which allows unauthorized attackers to execute arbitrary commands on the affected device. The issue stems from inadequate input validation and sanitization within the firmware's web interface handling mechanism, creating a direct pathway for malicious command execution. The affected device operates with elevated privileges, meaning successful exploitation could grant attackers complete control over the router's functionality and potentially the entire network segment it manages. This vulnerability represents a significant security risk as it enables attackers to bypass authentication mechanisms and execute system-level commands without proper authorization, making it particularly dangerous for both home and enterprise network environments.
The technical exploitation of this command injection vulnerability occurs when the formexeCommand function processes user-supplied input from the cmdinput parameter without proper sanitization or validation. This allows attackers to inject malicious commands that get executed within the router's command shell environment. The vulnerability falls under CWE-77 which categorizes command injection flaws, and aligns with ATT&CK technique T1059.001 for command and scripting interpreter. The router's web interface fails to properly escape or filter special characters that could be interpreted as command delimiters or operators, enabling attackers to chain commands or manipulate the execution environment. The vulnerability is particularly concerning because it operates at the system level, potentially allowing attackers to modify firewall rules, access network traffic, or even install backdoors on the device. Network traffic analysis reveals that the affected parameter is transmitted through standard HTTP requests, making exploitation accessible via web-based attack vectors.
The operational impact of CVE-2024-32314 extends beyond simple unauthorized access, as successful exploitation can lead to complete network compromise and persistent backdoor access. Attackers could leverage this vulnerability to perform man-in-the-middle attacks, redirect traffic through malicious servers, or establish persistent access points within the network. The router's role as a network gateway makes it a prime target for attackers seeking to maintain long-term access to the network infrastructure. This vulnerability could enable attackers to monitor network communications, steal sensitive data, or use the compromised device as a launch point for further attacks against internal systems. The impact is particularly severe in enterprise environments where such devices may be used as network access points or for managing critical network segments, potentially leading to widespread data breaches or network disruption. Additionally, the vulnerability could be exploited for botnet recruitment, turning the compromised router into part of a larger distributed attack infrastructure.
Mitigation strategies for CVE-2024-32314 should prioritize immediate firmware updates from Tenda, as the vendor has likely released patches addressing this vulnerability. Network administrators should implement network segmentation and monitoring to detect suspicious command execution patterns or unusual traffic flows originating from affected devices. Access control measures including firewall rules restricting external access to router management interfaces and implementing strong authentication mechanisms can help reduce exploitation risk. Regular network scanning and vulnerability assessments should be conducted to identify potentially affected devices within the network infrastructure. The implementation of intrusion detection systems capable of identifying command injection attempts and anomalous behavior patterns can provide early warning of exploitation attempts. Security teams should also consider disabling unnecessary web management interfaces and implementing secure remote access solutions such as VPNs with strong authentication. Additionally, network administrators should establish procedures for regular firmware updates and vulnerability assessments to prevent similar issues from arising in the future, following industry best practices outlined in standards such as NIST SP 800-40 for vulnerability management and mitigation strategies.