CVE-2024-8887 in Q-SMT
Summary
by MITRE • 09/18/2024
CIRCUTOR Q-SMT in its firmware version 1.0.4, could be affected by a denial of service (DoS) attack if an attacker with access to the web service bypasses the authentication mechanisms on the login page, allowing the attacker to use all the functionalities implemented at web level that allow interacting with the device.
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Analysis
by VulDB Data Team • 10/01/2024
The vulnerability identified as CVE-2024-8887 affects CIRCUTOR Q-SMT devices running firmware version 1.0.4, presenting a significant security risk that could lead to denial of service conditions. This weakness stems from insufficient authentication mechanisms within the web service interface, creating an exploitable pathway for unauthorized actors to gain access to device functionalities. The vulnerability represents a critical failure in the device's security architecture, as it allows attackers to bypass standard login protections and access all web-level functionalities without proper authorization. Such a flaw fundamentally undermines the device's security posture and creates opportunities for malicious actors to disrupt service availability and potentially compromise the broader network infrastructure.
The technical flaw manifests as a weak authentication bypass vulnerability that enables attackers to directly access web service endpoints without proper credential validation. This weakness creates a pathway for unauthorized access to device management interfaces, allowing attackers to interact with all implemented web functionalities. The vulnerability is categorized under CWE-287, which addresses improper authentication issues in software systems, and aligns with ATT&CK technique T1110.003 for credential access through brute force methods. The device's web service interface appears to lack proper session management and access control enforcement, enabling attackers to leverage their unauthorized access to execute commands or manipulate device settings that should be restricted to authorized personnel only.
The operational impact of this vulnerability is severe and multifaceted, potentially enabling attackers to disrupt device operations through various denial of service vectors. An attacker could exploit this vulnerability to consume system resources, modify device configurations, or prevent legitimate users from accessing the device's web interface. The ability to access all web-level functionalities creates opportunities for attackers to manipulate device behavior, potentially causing service interruptions that could affect critical infrastructure operations. This vulnerability particularly impacts industrial control systems and network monitoring devices where availability and reliability are paramount. The consequences extend beyond simple service disruption to include potential data integrity compromise and unauthorized system modifications that could affect operational technology environments.
Mitigation strategies for CVE-2024-8887 should prioritize immediate firmware updates from CIRCUTOR to address the authentication bypass vulnerability. Organizations should implement network segmentation to isolate affected devices from critical network segments and deploy additional access controls such as firewalls and intrusion detection systems to monitor for suspicious web service access attempts. Network administrators should enforce strong authentication mechanisms including multi-factor authentication where possible, and implement proper access control lists to restrict web service access to authorized personnel only. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other networked devices. The remediation process should also include monitoring for unauthorized access attempts and implementing logging mechanisms to track web service interactions, which aligns with ATT&CK technique T1070.004 for indicator removal and T1562.001 for execution through command and scripting interpreter to detect and prevent exploitation attempts.