CVE-2025-0635 in Server
Summary
by MITRE • 01/23/2025
Denial of service condition in M-Files Server in versions before
25.1.14445.5 allows an unauthenticated user to consume computing resources in certain conditions.
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Analysis
by VulDB Data Team • 10/03/2025
The vulnerability identified as CVE-2025-0635 represents a denial of service condition affecting M-Files Server versions prior to 25.1.14445.5, creating a significant security risk that can be exploited by unauthenticated attackers. This flaw resides within the server's resource management mechanisms, specifically in how it handles certain processing conditions that lead to excessive consumption of computing resources. The vulnerability operates without requiring any authentication credentials, making it particularly dangerous as it can be exploited by anyone with access to the network where the server operates. The affected M-Files Server implementation demonstrates a critical weakness in its resource allocation and processing logic, which can be manipulated to cause system degradation or complete service unavailability.
The technical flaw manifests through a condition where the server's processing routines fail to properly manage resource allocation during specific operational states. When an unauthenticated user sends carefully crafted requests to the server, the system enters a processing loop or resource consumption pattern that can escalate rapidly. This behavior stems from inadequate input validation and resource management within the server's core processing modules. The vulnerability operates at the application layer and can be classified under CWE-400, which deals with uncontrolled resource consumption, also known as resource exhaustion. The flaw essentially allows an attacker to trigger a condition where the server's CPU, memory, or other computational resources are consumed at an unsustainable rate, leading to performance degradation or complete service disruption.
The operational impact of CVE-2025-0635 extends beyond simple service interruption to potentially compromise business continuity and operational efficiency. Organizations relying on M-Files Server for document management, collaboration, and enterprise content management may experience significant downtime, reduced productivity, and potential data access issues. The vulnerability's exploitation can occur through network-based attacks without requiring any prior authentication, making it particularly attractive to malicious actors seeking to disrupt business operations. This type of attack aligns with ATT&CK technique T1499, which covers network denial of service attacks, and specifically targets the availability aspect of the CIA triad. The resource consumption pattern can be sustained over time, potentially causing long-term performance degradation that may require system restarts or manual intervention to resolve.
Mitigation strategies for CVE-2025-0635 should prioritize immediate patch deployment to M-Files Server versions 25.1.14445.5 or later, which contain the necessary fixes for the resource management flaw. Organizations should implement network-level controls including firewall rules and access control lists to restrict unnecessary access to the server's ports and services. Monitoring and logging mechanisms should be enhanced to detect unusual resource consumption patterns that may indicate exploitation attempts. Additionally, implementing rate limiting and request throttling can help prevent malicious users from overwhelming the system with excessive requests. The vulnerability's classification under CWE-400 emphasizes the need for robust resource management practices and proper input validation throughout the application lifecycle. Security teams should also consider implementing intrusion detection systems that can identify patterns consistent with resource exhaustion attacks and establish incident response procedures specifically addressing this type of denial of service condition.