CVE-2023-22441 in SkyBridge Basic MB-A130
Summary
by MITRE • 05/10/2023
Missing authentication for critical function exists in Seiko Solutions SkyBridge series, which may allow a remote attacker to obtain or alter the setting information of the product or execute some critical functions without authentication, e.g., rebooting the product. Affected products and versions are as follows: SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 10/01/2025
The vulnerability identified as CVE-2023-22441 represents a critical authentication flaw within the Seiko Solutions SkyBridge series of network devices, specifically affecting the MB-A200 and MB-A130 models. This weakness resides in the implementation of access controls for critical system functions, where proper authentication mechanisms have been omitted or bypassed. The affected firmware versions indicate that this issue has persisted across multiple generations of the SkyBridge product line, suggesting a fundamental design flaw rather than a transient software bug. The vulnerability affects devices that are typically deployed in industrial and enterprise networking environments where secure access to network infrastructure is paramount for maintaining operational integrity and preventing unauthorized access to critical systems.
The technical nature of this vulnerability stems from a failure in the authentication framework that governs access to critical functions within the SkyBridge devices. According to CWE-284, this corresponds to an "Improper Access Control" weakness where the system fails to properly enforce access restrictions for privileged operations. The flaw allows remote attackers to manipulate device settings and execute administrative functions without proper credentials, effectively undermining the security model of the device. The attack surface includes operations such as rebooting the device, modifying configuration parameters, and potentially accessing sensitive operational data. This type of vulnerability typically arises when developers implement security controls selectively, leaving critical functions unprotected while securing less sensitive operations, creating a false sense of security for users who assume all administrative functions are properly protected.
The operational impact of CVE-2023-22441 extends beyond simple unauthorized access, as it provides attackers with the capability to disrupt service availability and compromise system integrity. Remote exploitation of this vulnerability can lead to denial of service conditions through device reboots, configuration corruption that may cause operational failures, or even complete system compromise if the device serves as a gateway to larger network infrastructures. The affected SkyBridge devices are commonly used in industrial environments where network reliability and security are critical factors, making this vulnerability particularly dangerous as it could potentially affect production systems, data integrity, and operational continuity. The specific firmware versions mentioned indicate that this vulnerability affects devices that are likely in production use, meaning organizations may have deployed these systems without proper security hardening, creating a widespread risk across multiple installations.
Organizations affected by this vulnerability should implement immediate mitigations including firmware updates from Seiko Solutions, network segmentation to limit access to these devices, and the implementation of additional access controls such as network access control lists or dedicated management networks. The ATT&CK framework categorizes this type of vulnerability under T1078 which deals with Valid Accounts, as attackers can leverage the lack of authentication to assume administrative roles without proper credential verification. Additionally, organizations should conduct comprehensive vulnerability assessments to identify all SkyBridge devices in their network and ensure that proper access controls are implemented. The remediation process requires careful planning to avoid disrupting critical network operations while ensuring that the vulnerability is properly addressed. Security monitoring should be enhanced to detect unauthorized access attempts and configuration changes that may indicate exploitation of this vulnerability. Given the industrial nature of these devices, organizations should also consider implementing network intrusion detection systems that can identify suspicious traffic patterns associated with exploitation attempts.