CVE-2024-31813 in EX200
Summary
by MITRE • 04/08/2024
TOTOLINK EX200 V4.0.3c.7646_B20201211 does not contain an authentication mechanism by default.
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Analysis
by VulDB Data Team • 11/20/2024
The TOTOLINK EX200 router model running firmware version V4.0.3c.7646_B20201211 presents a critical security vulnerability due to the complete absence of authentication mechanisms within its default configuration. This vulnerability falls under the CWE-305 authentication flaw category, where the device fails to implement proper access controls that would normally require users to provide valid credentials before gaining access to administrative functions or network configuration settings. The lack of authentication represents a fundamental security failure that exposes the device to unauthorized access and potential exploitation by malicious actors.
This vulnerability creates a dangerous operational environment where any individual with network access can potentially gain full administrative control over the router without requiring any form of authentication. The default configuration of the device leaves all management interfaces accessible to anyone who can reach the device on the network, effectively removing any barrier to unauthorized access. This issue is particularly concerning as routers serve as critical network infrastructure components that control network traffic, manage security policies, and provide access to internal network resources. The absence of authentication mechanisms creates a pathway for attackers to modify network configurations, redirect traffic, or establish backdoors within the network infrastructure.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass significant risks to network security and integrity. Attackers who gain access to the router can manipulate firewall rules, change network settings, redirect DNS traffic, and potentially establish persistent access points within the network. This vulnerability aligns with several ATT&CK tactics including initial access through network service scanning and privilege escalation via unauthorized administrative access. The device's default state provides an easy target for automated scanning tools that can identify and exploit this configuration flaw without requiring any specialized knowledge or credentials.
Network administrators and security professionals should immediately address this vulnerability by implementing alternative authentication mechanisms or by upgrading to firmware versions that include proper authentication controls. The recommended mitigation strategies include disabling unnecessary services, implementing network segmentation, and deploying additional security controls such as network access control lists to limit access to the router management interfaces. Organizations should also consider implementing network monitoring solutions to detect unauthorized access attempts and ensure that all network devices are configured according to security best practices. This vulnerability demonstrates the critical importance of proper default security configurations and the potential consequences of failing to implement basic authentication requirements in network infrastructure devices. The absence of authentication in default configurations violates fundamental security principles and represents a significant risk to network security posture that requires immediate attention and remediation.