CVE-2020-23587 in OP-XT71000N
Summary
by MITRE • 11/23/2022
A vulnerability found in the OPTILINK OP-XT71000N Hardware Version: V2.2 , Firmware Version: OP_V3.3.1-191028 allows an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack to men in the middle attack by adding New Routes in RoutingConfiguration on " /routing.asp ".
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Analysis
by VulDB Data Team • 04/26/2025
The vulnerability identified as CVE-2020-23587 affects the OPTILINK OP-XT71000N network device with specific hardware version V2.2 and firmware version OP_V3.3.1-191028. This represents a critical security flaw that exposes the device to unauthorized remote exploitation through cross-site request forgery techniques. The vulnerability specifically targets the routing configuration functionality accessible via the /routing.asp web interface, creating a significant attack surface for malicious actors seeking to compromise network infrastructure. The device operates within the broader context of enterprise networking equipment where unauthorized modifications to routing configurations can have severe implications for network security and data integrity.
The technical flaw manifests as a missing or inadequate CSRF protection mechanism within the web interface of the network device. When an attacker successfully exploits this vulnerability, they can manipulate the routing configuration without proper authentication, effectively enabling man-in-the-middle attack capabilities. The attack vector requires no authentication credentials, making it particularly dangerous as it can be executed by any remote attacker who can access the device's web interface. The vulnerability exists because the device fails to implement proper anti-CSRF tokens or validation mechanisms that would normally prevent unauthorized requests from being executed on behalf of authenticated users. This flaw aligns with CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities, and demonstrates the critical importance of implementing proper session management and request validation controls in web applications.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential network disruption, data interception, and complete compromise of the device's routing functionality. An attacker could add malicious routes to redirect network traffic through compromised endpoints, enabling eavesdropping, data manipulation, or complete network isolation of targeted systems. The implications are particularly severe in enterprise environments where these devices often serve as core network infrastructure components, potentially allowing attackers to establish persistent access points within the network. This vulnerability can facilitate lateral movement attacks and provide attackers with opportunities to escalate privileges or access sensitive network resources, making it a significant concern for organizations relying on this specific hardware platform. The attack can be executed remotely without requiring physical access or legitimate credentials, representing a severe weakening of the device's security posture.
Mitigation strategies for this vulnerability should focus on immediate firmware updates from the vendor to address the CSRF implementation flaw, while also implementing network segmentation to limit exposure of affected devices to untrusted networks. Organizations should deploy network monitoring solutions to detect anomalous routing changes and establish strict access controls for web management interfaces. Network administrators should disable unnecessary web management services when not actively required and implement strong authentication mechanisms for any remaining access points. The vulnerability demonstrates the importance of regular security assessments and firmware updates, as well as adherence to security best practices outlined in frameworks such as NIST SP 800-53 and ISO/IEC 27001. Additionally, implementing web application firewalls and proper input validation can provide additional layers of defense against similar CSRF attacks. The attack pattern aligns with ATT&CK technique T1071.004 for application layer protocol: DNS, where attackers leverage network infrastructure vulnerabilities to manipulate routing configurations and establish persistent network access.