CVE-2018-12261 in Axel 720P
Summary
by MITRE
An issue was discovered on Momentum Axel 720P 5.1.8 devices. All processes run as root.
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Analysis
by VulDB Data Team • 02/18/2020
The vulnerability identified as CVE-2018-12261 affects Momentum Axel 720P 5.1.8 devices and represents a critical privilege escalation flaw that fundamentally compromises the security posture of these networked video surveillance systems. This issue stems from the improper execution model where all processes within the device operate with root privileges, creating an inherent security risk that can be exploited by malicious actors to gain complete system control. The device in question is part of the Momentum Axel series, which are typically deployed in security-sensitive environments where unauthorized access could lead to significant operational and privacy breaches.
The technical flaw manifests as a lack of privilege separation within the device's architecture, where processes that should operate with minimal necessary permissions are instead executing with full root privileges. This design decision violates fundamental security principles and creates a dangerous attack surface where any vulnerability in any process can be leveraged to achieve complete system compromise. The root execution context allows attackers to bypass standard security controls and directly manipulate system files, modify configurations, and potentially exfiltrate sensitive data without requiring additional privilege escalation techniques. This vulnerability aligns with CWE-276, which addresses improper privilege management, and represents a classic case of excessive privilege assignment that undermines the principle of least privilege.
The operational impact of this vulnerability is severe and multifaceted, particularly given the nature of video surveillance systems. An attacker who gains access to the device could potentially manipulate video feeds in real-time, disable security features, modify system logs to cover malicious activities, and establish persistent backdoors for future access. The device's role in security monitoring environments means that exploitation could lead to complete compromise of surveillance operations, potentially allowing attackers to remain undetected while monitoring sensitive areas. The root-level access also enables attackers to modify the device's firmware, create new user accounts, and access any data stored locally or transmitted over the network, making this vulnerability particularly dangerous for organizations relying on these systems for security operations.
Mitigation strategies for this vulnerability should focus on immediate operational responses and long-term architectural improvements. Organizations should implement network segmentation to isolate these devices from critical network segments and apply network access controls to limit communication to only necessary services. Regular security audits should be conducted to identify any unauthorized access or modifications to the device configuration. The vendor should provide immediate firmware updates to address the privilege escalation issue, though given the age of the affected firmware version, this may not be possible. Security monitoring should be enhanced to detect unusual network traffic patterns or access attempts to these devices. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation techniques and can be leveraged to establish persistence, as documented in techniques such as T1068 and T1078. Organizations should also consider implementing device integrity monitoring solutions to detect unauthorized modifications to the device's operating environment and ensure that any changes to the system configuration are properly authorized and logged.