CVE-2009-2274 in D100 Router
Summary
by MITRE
The Huawei D100 allows remote attackers to obtain sensitive information via a direct request to (1) lan_status_adv.asp, (2) wlan_basic_cfg.asp, or (3) lancfg.asp in en/, related to use of JavaScript to protect against reading file contents.
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Analysis
by VulDB Data Team • 10/07/2025
The vulnerability identified as CVE-2009-2274 affects Huawei D100 devices and represents a critical information disclosure flaw that enables remote attackers to access sensitive system information through direct web requests. This issue stems from inadequate access controls within the device's web interface implementation, specifically targeting three vulnerable endpoints: lan_status_adv.asp, wlan_basic_cfg.asp, and lancfg.asp located within the en/ directory structure. The vulnerability demonstrates a fundamental flaw in the device's security architecture where sensitive configuration data and system parameters are exposed through JavaScript-based protection mechanisms that can be bypassed by direct API calls.
The technical implementation of this vulnerability involves the device's web server failing to properly validate access requests to critical configuration files. When attackers make direct requests to the specified.asp files, the JavaScript-based protection mechanisms that should prevent unauthorized access are circumvented, allowing full read access to sensitive network configuration data including lan settings, wireless network parameters, and general network configuration details. This represents a classic case of insecure direct object reference vulnerability where the system fails to enforce proper access controls between different user roles and system components. The vulnerability aligns with CWE-284 which describes improper access control issues, and specifically relates to CWE-668 where insufficient protection of sensitive information is exposed to unauthorized users.
From an operational impact perspective, this vulnerability enables attackers to gain comprehensive knowledge of the target network infrastructure without requiring authentication or physical access to the device. The leaked information includes critical network configuration parameters that could facilitate subsequent attacks including network mapping, wireless network exploitation, and targeted attacks against connected devices. Attackers can obtain details about the local area network topology, wireless network settings, and general system configuration that would otherwise remain hidden from unauthorized users. This information disclosure creates a significant risk for organizations as it provides attackers with the foundational knowledge needed to plan more sophisticated attacks against the network infrastructure. The vulnerability also demonstrates poor security design principles where the device relies on client-side JavaScript for security enforcement rather than implementing proper server-side access controls.
The attack surface for this vulnerability extends beyond simple information gathering to include potential exploitation of other related security flaws within the device's architecture. Network administrators who rely on Huawei D100 devices for their network infrastructure face significant risk as this vulnerability could enable attackers to map network topology, identify wireless access points, and potentially exploit other vulnerabilities in the device's firmware. The vulnerability also violates several key principles from the MITRE ATT&CK framework, particularly in the credential access and discovery phases where attackers can gather system information and network configuration details. Organizations should consider this vulnerability as part of a broader security assessment since it may indicate additional security weaknesses in the device's overall architecture and access control implementation.
Mitigation strategies for this vulnerability require immediate implementation of proper access controls and authentication mechanisms for all web interface endpoints. Device administrators should ensure that all configuration files and system information are protected through robust server-side access validation rather than relying on client-side JavaScript protection. Network segmentation and firewall rules should be implemented to restrict access to administrative interfaces, and regular firmware updates should be applied to address known vulnerabilities. The vulnerability also highlights the importance of implementing proper input validation and access control mechanisms in web applications, aligning with security best practices from NIST SP 800-53 and ISO 27001 standards. Organizations should conduct comprehensive security assessments of their network infrastructure to identify similar vulnerabilities in other network devices and ensure proper access control implementation across all system components.