CVE-2025-47872 in 12kPV
Summary
by MITRE • 08/08/2025
The public-facing product registration endpoint server responds differently depending on whether the S/N is valid and unregistered, valid but already registered, or does not exist in the database. Combined with the fact that serial numbers are sequentially assigned, this allows an attacker to gain information on the product registration status of different S/Ns.
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Analysis
by VulDB Data Team • 08/09/2025
This vulnerability resides in the product registration endpoint of a public-facing system where the server exhibits distinct behavioral responses based on serial number validation states. The flaw manifests when the system processes registration requests and provides different HTTP responses, error messages, or status codes depending on whether a serial number is valid and unregistered, valid but already registered, or simply does not exist in the database. The vulnerability is particularly concerning because serial numbers are sequentially assigned, creating a predictable pattern that attackers can exploit to enumerate and determine the registration status of multiple products without proper authorization. This information disclosure vulnerability fundamentally undermines the system's ability to maintain product registration confidentiality and creates a pathway for unauthorized enumeration of legitimate product instances.
The technical implementation of this vulnerability stems from improper error handling and response differentiation within the registration endpoint. When a serial number is submitted, the system should provide a consistent response regardless of the validation outcome to prevent information leakage. However, the current implementation fails to normalize these responses, allowing attackers to distinguish between different validation states through response analysis. This pattern-based information disclosure aligns with CWE-209, which addresses the exposure of error information, and specifically relates to CWE-352, concerning cross-site request forgery, though more directly connects to CWE-200, which covers information exposure. The sequential assignment of serial numbers creates a deterministic attack surface where an attacker can systematically test ranges of serial numbers to build a comprehensive map of registered products, effectively performing a product inventory enumeration attack.
The operational impact of this vulnerability extends beyond simple information disclosure to potentially enable more sophisticated attack vectors. An attacker who can determine which serial numbers are registered can then focus subsequent attacks on unregistered or specific product instances, potentially leading to license forgery, counterfeiting, or targeted exploitation of vulnerable product versions. The vulnerability also creates opportunities for business intelligence gathering, allowing adversaries to understand product distribution patterns, customer base size, and market penetration levels. From an attacker's perspective, this represents a low-effort, high-value reconnaissance technique that can be automated to quickly gather comprehensive product registration data. The vulnerability may also facilitate supply chain attacks by enabling attackers to identify specific product instances that are likely to be in use and potentially vulnerable to targeted exploits.
Mitigation strategies should focus on implementing consistent error handling across all registration endpoint responses, ensuring that the system provides identical responses regardless of whether a serial number is valid and unregistered, valid but registered, or invalid. This approach aligns with the principle of least information disclosure and follows the ATT&CK framework's guidance on information gathering techniques. Organizations should implement rate limiting and request throttling mechanisms to prevent automated enumeration attempts, while also considering the implementation of anti-automation measures such as CAPTCHA or behavioral analysis. Additionally, the sequential assignment of serial numbers should be reconsidered to implement a more randomized or cryptographically generated numbering scheme that prevents pattern recognition. Regular security testing should include enumeration attack simulations to verify that the implemented mitigations effectively prevent information leakage. The system should also implement proper access controls and authentication mechanisms to ensure that only authorized users can access registration endpoints, further reducing the attack surface.