CVE-2024-3871 in DVW-W02W2-E2
Summary
by MITRE • 04/16/2024
The Delta Electronics DVW-W02W2-E2 devices expose a web administration interface to users. This interface implements two features (access control lists management, WPS pin setup) that are affected by command injections and stack overflows vulnerabilities. Successful exploitation of these flaws would allow remote authenticated attackers to gain remote command execution with elevated privileges on the affected devices.
This issue affects DVW-W02W2-E2 through version 2.5.2.
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Analysis
by VulDB Data Team • 11/21/2025
The Delta Electronics DVW-W02W2-E2 device represents a network infrastructure component that exposes a web administration interface to users, creating a potential attack surface for malicious actors. This particular device model operates within the realm of network security appliances where administrative functions are critical for maintaining system integrity and user access control. The vulnerability landscape for such devices is particularly concerning as they often serve as gateways or management points for broader network operations. The device's web interface implementation contains two distinct security flaws that together create a comprehensive attack vector for remote authenticated adversaries seeking to compromise the system.
The technical implementation of the vulnerability involves two primary attack vectors that demonstrate poor input validation and memory management practices within the device's web interface components. The access control lists management feature suffers from command injection vulnerabilities that occur when user-supplied data is improperly sanitized before being processed by the system's underlying command execution mechanisms. This flaw directly maps to common security weaknesses documented in the CWE database under command injection categories, where untrusted data is concatenated or interpreted as part of a command. Additionally, the WPS pin setup functionality contains stack overflow vulnerabilities that arise from insufficient bounds checking when handling user input data structures. These stack overflow conditions create opportunities for attackers to overwrite critical memory locations and potentially redirect execution flow to malicious code. The combination of these vulnerabilities demonstrates a lack of proper input sanitization and memory boundary validation that aligns with common patterns found in embedded system security flaws.
The operational impact of this vulnerability extends beyond simple privilege escalation as it allows attackers to achieve remote command execution with elevated privileges on the affected devices. This capability enables adversaries to perform comprehensive system compromise operations including but not limited to data exfiltration, system modification, or establishing persistent access points within the network infrastructure. The authenticated nature of the attack requires an attacker to first obtain valid credentials, but this barrier is often overcome through various social engineering, credential reuse, or other exploitation techniques. The elevated privilege execution capability means that attackers can manipulate core system functions, modify network configurations, or disable security features that protect the device and surrounding network infrastructure. This vulnerability directly impacts the integrity and availability of network services that depend on the proper functioning of these devices, potentially creating cascading effects throughout the connected network environment.
Security mitigations for this vulnerability should prioritize immediate firmware updates from Delta Electronics to address the identified command injection and stack overflow flaws. Organizations should implement network segmentation to limit access to administrative interfaces and ensure that only authorized personnel can reach these management points. The implementation of network access control lists and firewall rules can help reduce the attack surface by restricting access to the device's web interface from unauthorized network segments. Regular security audits and penetration testing of network infrastructure devices should be conducted to identify similar vulnerabilities in other equipment within the organization's network. Additionally, monitoring for unusual administrative access patterns or command execution activities can help detect exploitation attempts. The vulnerability's presence in versions through 2.5.2 indicates that organizations should maintain strict firmware update policies and implement automated patch management systems to ensure all network infrastructure components receive timely security updates. The ATT&CK framework's privilege escalation techniques are particularly relevant here as attackers can leverage these vulnerabilities to move laterally within network environments and establish persistent access to critical infrastructure components.