CVE-2023-6691 in ePMP Force 300-25
Summary
by MITRE • 12/18/2023
Cambium ePMP Force 300-25 version 4.7.0.1 is vulnerable to a code injection vulnerability that could allow an attacker to perform remote code execution and gain root privileges.
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Analysis
by VulDB Data Team • 01/12/2024
The CVE-2023-6691 vulnerability affects the Cambium ePMP Force 300-25 wireless access point device running firmware version 4.7.0.1. This critical security flaw represents a code injection vulnerability that fundamentally compromises the device's integrity and security posture. The vulnerability resides within the device's web-based management interface, where improper input validation allows malicious actors to inject arbitrary code into the system. This type of vulnerability falls under the CWE-94 category of "Improper Control of Generation of Code" and aligns with ATT&CK technique T1059.007 for command and scripting interpreter. The affected device operates as a critical network infrastructure component in wireless communication systems, making it an attractive target for attackers seeking persistent access to network environments.
The technical exploitation of this vulnerability occurs through the manipulation of input parameters within the device's administrative web interface. Attackers can craft malicious requests that bypass normal input sanitization mechanisms, enabling them to execute arbitrary commands with the highest privileges available on the system. This privilege escalation capability allows attackers to gain root access, effectively providing complete control over the device and its network operations. The vulnerability is particularly concerning because it enables remote code execution without requiring authentication, making it accessible to attackers from external network positions. The device's architecture does not properly validate or sanitize user-supplied input before processing, creating a direct pathway for code injection attacks that can be leveraged for privilege escalation.
The operational impact of CVE-2023-6691 extends beyond simple device compromise, as it can lead to complete network infiltration and persistent access. Once an attacker gains root privileges on the wireless access point, they can manipulate network traffic, redirect communications, or establish backdoor access points for continued unauthorized access. This vulnerability directly affects the CIA triad by compromising confidentiality through potential data interception, integrity through unauthorized modifications to network operations, and availability through possible denial-of-service scenarios. Organizations relying on Cambium ePMP Force 300-25 devices for wireless network infrastructure face significant risks including unauthorized network access, data breaches, and potential compromise of entire network segments. The vulnerability's remote exploitability means that attackers can target these devices from anywhere on the internet, making it particularly dangerous for organizations with exposed management interfaces.
Mitigation strategies for CVE-2023-6691 must address both immediate remediation and long-term security improvements. The primary recommendation is to upgrade to the latest firmware version that contains patches for this vulnerability, as Cambium has released updates to address the code injection flaw. Network segmentation should be implemented to isolate critical wireless infrastructure from general network access, reducing the attack surface for potential exploitation. Access controls must be strengthened through the implementation of multi-factor authentication, IP address restrictions on management interfaces, and regular monitoring of administrative access logs. Organizations should also implement network monitoring solutions capable of detecting anomalous traffic patterns that might indicate exploitation attempts. The vulnerability highlights the importance of proper input validation and output encoding practices in web applications, reinforcing the need for secure coding standards and regular security assessments of network infrastructure devices. Continuous vulnerability scanning and patch management processes should be established to prevent similar issues from arising in the future, particularly given the ATT&CK framework's emphasis on maintaining persistent access through exploitation of unpatched systems.