CVE-2008-1402 in Net Inspector
Summary
by MITRE
MG-SOFT Net Inspector 6.5.0.828 and earlier for Windows allows remote attackers to cause a (1) denial of service (exception and crash) via a UDP packet to the SNMP Trap Service (MgWTrap3.exe) or (2) denial of service (device freeze or memory consumption) via a malformed request to the Net Inspector Server (niengine).
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Analysis
by VulDB Data Team • 10/19/2024
The vulnerability identified as CVE-2008-1402 affects MG-SOFT Net Inspector 6.5.0.828 and earlier versions for Windows systems, representing a significant security flaw that exposes the network monitoring solution to remote exploitation. This vulnerability impacts two distinct components of the software architecture, creating multiple attack vectors that could compromise system availability and operational integrity. The affected software is designed for network monitoring and analysis, making it a critical component in enterprise network security infrastructure where reliability and uptime are paramount. The vulnerability exists within the SNMP Trap Service and the Net Inspector Server components, both of which are essential for network monitoring operations and device management.
The technical implementation of this vulnerability stems from inadequate input validation and error handling within the MG-SOFT Net Inspector software. When the SNMP Trap Service (MgWTrap3.exe) receives a UDP packet, it fails to properly validate the incoming data structure, leading to an exception that causes the service to crash and terminate unexpectedly. This represents a classic buffer overflow or malformed input scenario that results in an unhandled exception, causing the application to become unstable and eventually crash. Additionally, the Net Inspector Server component (niengine) is vulnerable to malformed requests that can cause memory consumption issues or device freezing, indicating weak input sanitization and resource management practices. These flaws demonstrate poor defensive programming techniques that fail to implement proper bounds checking and input validation mechanisms, creating opportunities for attackers to exploit the software's inherent weaknesses.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise entire network monitoring infrastructures. When the SNMP Trap Service crashes, network administrators lose critical trap monitoring capabilities that are essential for detecting network events, security incidents, and device failures. The device freezing or memory consumption issues in the Net Inspector Server component can lead to complete system unresponsiveness, forcing network operators to manually restart services or reboot entire systems. This vulnerability particularly affects enterprise environments where network monitoring solutions are critical for maintaining visibility into network operations and security events. The remote nature of the attack means that adversaries can exploit these flaws from outside the network perimeter without requiring local access or authentication credentials, making the vulnerability especially dangerous for network security monitoring systems.
Organizations should implement immediate mitigations to address this vulnerability, including applying the latest available patches from MG-SOFT, which would contain proper input validation and error handling mechanisms. Network segmentation and firewall rules should be configured to restrict access to the vulnerable services, limiting exposure to unauthorized users. The implementation of intrusion detection systems and network monitoring tools can help detect exploitation attempts and provide early warning of potential attacks. From a defensive perspective, this vulnerability aligns with CWE-121, which addresses stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow conditions, both of which represent fundamental software security weaknesses. The attack patterns associated with this vulnerability map to ATT&CK technique T1499.004, which involves network disruption through service interruption, and T1566.001, which covers spearphishing with a malicious attachment, though the latter is less applicable given the UDP-based nature of the attack vector. Organizations should also conduct thorough vulnerability assessments to identify any other potentially affected systems and ensure that network monitoring solutions are properly hardened against similar exploitation techniques.