CVE-2020-13896 in MP1800X-50
Summary
by MITRE
The web interface of Maipu MP1800X-50 7.5.3.14(R) devices allows remote attackers to obtain sensitive information via the form/formDeviceVerGet URI, such as system id, hardware model, hardware version, bootloader version, software version, software image file, compilation time, and system uptime. This is similar to CVE-2019-1653.
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Analysis
by VulDB Data Team • 06/30/2020
The vulnerability identified as CVE-2020-13896 affects Maipu MP1800X-50 7.5.3.14(R) network devices, representing a critical information disclosure flaw in the device's web interface. This vulnerability exposes sensitive system information through an unauthenticated endpoint at form/formDeviceVerGet, which serves as a gateway for remote attackers to gather comprehensive details about the device's configuration and operational state. The exposed information includes system identifiers, hardware specifications, version numbers for both bootloader and software components, compilation timestamps, and system uptime metrics, all of which can significantly aid malicious actors in understanding the device's attack surface and planning targeted exploitation strategies.
The technical implementation of this vulnerability stems from inadequate access controls within the web interface's URI handling mechanism. The form/formDeviceVerGet endpoint fails to properly authenticate or authorize remote requests, allowing any attacker with network access to retrieve detailed system information without requiring credentials or privileged access. This flaw directly relates to CWE-200, which addresses the improper exposure of sensitive information, and represents a classic example of insufficient input validation and access control mechanisms. The vulnerability's similarity to CVE-2019-1653 indicates a persistent pattern in Maipu device firmware where web interfaces inadequately protect sensitive system metadata, suggesting a systemic security weakness rather than an isolated incident.
The operational impact of this vulnerability extends beyond simple information disclosure, creating significant risks for network security and infrastructure integrity. Attackers can leverage the gathered information to perform targeted attacks against specific device versions, exploit known vulnerabilities in particular software releases, or conduct reconnaissance for more sophisticated attacks. The exposure of compilation timestamps and software version details enables threat actors to identify outdated firmware that may contain additional unpatched vulnerabilities, while system uptime information can help determine optimal timing for attacks. This vulnerability particularly affects network infrastructure devices that are often deployed in environments where physical security is limited, making them susceptible to remote exploitation from external networks.
Organizations should implement immediate mitigations including network segmentation to isolate affected devices, deployment of network access control lists to restrict access to the vulnerable URI endpoint, and implementation of web application firewalls to detect and block unauthorized requests to sensitive endpoints. The vulnerability demonstrates the importance of adhering to security standards such as those outlined in the OWASP Top Ten and NIST cybersecurity frameworks, particularly focusing on input validation and access control measures. Device administrators should also conduct comprehensive inventory audits to identify all affected devices and prioritize firmware updates when available, while monitoring network traffic for suspicious access patterns to the vulnerable URI endpoint. The vulnerability highlights the necessity of regular security assessments and the implementation of defense-in-depth strategies to protect critical network infrastructure components from information disclosure attacks that can serve as precursors to more serious security incidents.