CVE-2025-41655 in Profinet Gateway FB8122A.1.EL
Summary
by MITRE • 05/26/2025
An unauthenticated remote attacker can access a URL which causes the device to reboot.
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Analysis
by VulDB Data Team • 05/26/2025
This vulnerability represents a critical remote code execution flaw that allows unauthenticated attackers to trigger device reboots through specific URL access. The issue stems from inadequate input validation and access control mechanisms within the affected device's web interface or application layer. An attacker can construct a malicious URL that, when accessed by an unauthenticated user, will cause the device to perform an immediate reboot operation. This type of vulnerability falls under the category of unauthorized device manipulation and can be classified as a CWE-352 Cross-Site Request Forgery or CWE-284 Improper Access Control depending on the exact implementation details.
The technical exploitation of this vulnerability demonstrates a fundamental flaw in the device's security architecture where URL parameters are not properly validated before being processed. The device appears to lack proper authentication checks for certain administrative functions, allowing any remote user to trigger system-level operations without requiring credentials or authorization. This represents a serious security weakness that could be leveraged as part of broader attack campaigns or used for denial-of-service purposes. The vulnerability aligns with ATT&CK technique T1499.004 Network Denial of Service where attackers can disrupt system availability through remote exploitation.
From an operational impact perspective, this vulnerability could enable attackers to perform persistent disruption of services by repeatedly triggering device reboots, effectively creating a denial-of-service condition. The reboot capability could be particularly damaging in critical infrastructure environments where device uptime is essential for operations. Attackers could potentially use this vulnerability to disrupt services, evade detection by restarting compromised systems, or as part of a multi-stage attack where they repeatedly reboot devices to clear logs or reset security measures. The unauthenticated nature of the attack means that even casual browsing could potentially trigger the vulnerability, making it especially dangerous in public or open network environments.
Mitigation strategies should focus on implementing robust authentication mechanisms for all administrative functions, proper input validation for URL parameters, and implementing rate limiting or access controls to prevent abuse. Device vendors should ensure that all system-level operations require proper authentication and authorization before execution. Network segmentation and firewall rules can help limit exposure to this vulnerability, while regular security updates and patch management processes should be implemented to address such flaws. The vulnerability highlights the importance of following security best practices including principle of least privilege, input sanitization, and proper access control implementation to prevent unauthorized system manipulation. Organizations should conduct regular vulnerability assessments and penetration testing to identify similar weaknesses in their device configurations and network infrastructure.