CVE-2023-37058 in AX1800
Summary
by MITRE • 06/18/2024
Insecure Permissions vulnerability in JLINK Unionman Technology Co. Ltd Jlink AX1800 v.1.0 allows a remote attacker to escalate privileges via a crafted command.
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Analysis
by VulDB Data Team • 01/15/2026
The CVE-2023-37058 vulnerability represents a critical insecure permissions flaw discovered in the Jlink AX1800 router firmware version 1.0 developed by JLINK Unionman Technology Co. Ltd. This vulnerability resides within the network device's access control mechanisms and presents a significant security risk to organizations relying on this particular router model. The issue stems from improper permission controls that allow unauthorized remote execution of privileged commands, creating a pathway for malicious actors to gain elevated system access without legitimate authentication credentials. The vulnerability affects the device's command processing interface where insufficient validation and authorization checks are implemented, enabling attackers to manipulate the system through crafted input sequences.
The technical implementation of this vulnerability involves a failure in the router's command execution pipeline where user-supplied inputs are not properly sanitized or validated before being processed with administrative privileges. This flaw operates at the application layer and demonstrates characteristics consistent with CWE-284, which addresses improper access control vulnerabilities. Attackers can exploit this weakness by sending specially crafted commands through the network interface, bypassing normal authentication procedures and executing operations that should only be available to authorized administrators. The vulnerability essentially creates a backdoor pathway through which remote attackers can escalate their privileges from standard user level to root or administrative level access, enabling complete system compromise.
The operational impact of CVE-2023-37058 extends beyond simple privilege escalation, as it fundamentally undermines the security posture of networks utilizing affected Jlink AX1800 devices. Once exploited, attackers can gain complete control over the router's configuration, modify network settings, intercept traffic, and potentially use the compromised device as a pivot point for lateral movement within the network infrastructure. This vulnerability aligns with ATT&CK technique T1068, which covers local privilege escalation, and T1566, covering spearphishing with a malicious attachment or link, as the attack vector may involve remote command injection. Organizations using this router model face risks of data breaches, network disruption, and potential compliance violations, particularly in regulated environments where network security controls are mandatory.
Mitigation strategies for CVE-2023-37058 require immediate action from network administrators to address the insecure permissions configuration. The primary recommendation involves applying firmware updates from JLINK Unionman Technology Co. Ltd as soon as available, since the vendor has likely released patches to correct the permission validation flaws. Network segmentation should be implemented to isolate affected devices from critical network segments, reducing the potential impact of successful exploitation. Additionally, implementing network monitoring solutions that can detect anomalous command execution patterns or unusual administrative access attempts provides an additional layer of defense. Security teams should also consider disabling unnecessary remote management interfaces and enforcing strict access controls through firewalls and access control lists. The vulnerability demonstrates the importance of proper input validation and privilege separation in network device security, aligning with security best practices outlined in NIST SP 800-53 and ISO 27001 frameworks for network security controls.