CVE-2024-34210 in CP450
Summary
by MITRE • 05/14/2024
TOTOLINK outdoor CPE CP450 v4.1.0cu.747_B20191224 was discovered to contain a command injection vulnerability in the CloudACMunualUpdate function via the FileName parameter.
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Analysis
by VulDB Data Team • 05/14/2024
The vulnerability identified as CVE-2024-34210 affects TOTOLINK outdoor CPE CP450 devices running firmware version v4.1.0cu.747_B20191224 and represents a critical command injection flaw within the CloudACMunualUpdate function. This vulnerability resides in the FileName parameter processing mechanism, where insufficient input validation allows malicious actors to inject arbitrary commands that execute with elevated privileges. The affected device operates as a wireless outdoor communication endpoint typically used in enterprise and industrial networking environments, making it a potential target for attackers seeking persistent access to critical infrastructure.
The technical implementation of this vulnerability stems from improper sanitization of user-supplied input within the CloudACMunualUpdate function. When a user provides a FileName parameter, the system fails to properly validate or escape special characters that could be interpreted as command delimiters or operators. This lack of input sanitization creates a direct pathway for command injection attacks, where attackers can append malicious commands that get executed by the underlying operating system. The vulnerability aligns with CWE-77 and CWE-94 categories, representing command injection and code injection weaknesses respectively, and can be classified under ATT&CK technique T1059.001 for command and scripting interpreter. The affected parameter processing occurs within the device's web management interface, where administrative functions are exposed to remote network access.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with full system control capabilities including but not limited to remote code execution, data exfiltration, and persistent backdoor installation. Attackers could leverage this vulnerability to gain root-level access to the device, potentially compromising the entire network segment it serves as a gateway for. In enterprise environments, this could lead to lateral movement attacks, disruption of critical communications, and unauthorized access to sensitive operational data. The vulnerability affects devices deployed in outdoor environments where physical security may be limited, increasing the attack surface for remote exploitation. Network monitoring systems may not detect malicious command execution as it appears to be legitimate administrative activity, complicating detection and incident response efforts.
Mitigation strategies should focus on immediate firmware updates from TOTOLINK to address the command injection vulnerability, as no public exploits are currently known but the attack surface remains significant. Organizations should implement network segmentation to limit access to affected devices, restrict administrative access through firewall rules, and deploy intrusion detection systems to monitor for suspicious command execution patterns. Network administrators should also conduct comprehensive vulnerability assessments of all TOTOLINK devices within their infrastructure and consider implementing network access controls that limit the ability of unauthorized users to submit FileName parameters. Additional defensive measures include disabling unnecessary administrative functions, implementing strong authentication mechanisms, and establishing regular security auditing procedures to identify potential exploitation attempts. The vulnerability demonstrates the critical importance of input validation and proper security coding practices in embedded networking devices, particularly those serving as critical infrastructure components in industrial and enterprise environments.