CVE-2005-0834 in wireless router
Summary
by MITRE
Belkin 54G (F5D7130) wireless router enables SNMP by default in a manner that allows remote attackers to obtain sensitive information.
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Analysis
by VulDB Data Team • 07/15/2019
The Belkin 54G wireless router model F5D7130 contains a critical security flaw that exposes SNMP (Simple Network Management Protocol) services without proper authentication mechanisms, creating a significant vulnerability in network infrastructure. This issue stems from the device's default configuration where SNMP is enabled and accessible to remote attackers without requiring any authentication credentials, effectively providing unauthorized access to sensitive network information. The vulnerability represents a fundamental misconfiguration that violates basic security principles of network device management and access control. According to CWE-310, this flaw falls under cryptographic weakness categories where insufficient authentication mechanisms allow unauthorized access to system information. The device's default SNMP configuration operates without proper community string protection, making it trivial for attackers to enumerate network topology, device information, and potentially discover other vulnerable systems within the network perimeter. This vulnerability directly impacts the confidentiality and integrity of network management data, as SNMP provides access to critical system parameters, configuration settings, and operational metrics that could be exploited for further attacks. The operational impact extends beyond simple information disclosure, as this vulnerability enables attackers to gather intelligence for more sophisticated attacks including privilege escalation, network mapping, and potential exploitation of other connected devices. The flaw demonstrates poor security by design practices where default configurations prioritize convenience over security, creating a persistent threat vector that remains active until manually addressed by network administrators. Organizations implementing these devices face significant risk as the vulnerability allows attackers to remotely access network management information without requiring any specialized tools or advanced techniques. The exposure of SNMP services in this manner aligns with ATT&CK technique T1082 which involves discovering system information through network enumeration and reconnaissance activities. Network administrators who fail to properly configure or disable SNMP on these devices create persistent attack surfaces that can be exploited by threat actors with minimal effort. The vulnerability represents a classic case of default credential exposure where the device's configuration allows for unauthenticated access to management protocols that should require proper authentication before providing access to sensitive information. This flaw particularly affects organizations that deploy these routers without implementing proper network segmentation or additional access controls, as the vulnerability can be exploited from any location on the internet where the device is accessible. The impact of this vulnerability extends to compliance requirements for network security standards, as it creates gaps in network monitoring and management that violate basic security baseline configurations. According to industry best practices, this vulnerability should be addressed through immediate configuration changes that disable SNMP services or implement proper authentication mechanisms. The flaw underscores the importance of regular security assessments and configuration reviews, as default settings often provide insufficient protection against known attack vectors. Network security teams must ensure that all management protocols are properly secured and that devices are configured according to security benchmarks. The vulnerability also highlights the need for proper network monitoring to detect unauthorized access attempts to management interfaces, as the exposure of SNMP services creates clear indicators of compromise that should be monitored for suspicious activity. Organizations should implement automated scanning processes to identify devices with similar vulnerabilities across their network infrastructure, as this represents a common pattern of insecure default configurations in network equipment. The remediation process requires administrators to disable SNMP services entirely or configure proper authentication mechanisms, with the latter approach being more complex due to the need for secure credential management and access control implementation. This vulnerability demonstrates how basic security misconfigurations can create significant network exposure points that require immediate attention and proper security hardening procedures to prevent exploitation by threat actors.