CVE-2023-42631 in SC7731E
Summary
by MITRE • 11/01/2023
In validationtools, there is a possible missing permission check. This could lead to local information disclosure with no additional execution privileges needed
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Analysis
by VulDB Data Team • 11/29/2023
The vulnerability identified as CVE-2023-42631 resides within the validationtools component where a missing permission check has been discovered that could potentially lead to unauthorized local information disclosure. This flaw represents a critical security oversight that undermines the integrity of access controls within the system. The vulnerability stems from insufficient validation of user permissions during critical operations, allowing malicious actors to bypass expected authorization mechanisms and gain access to sensitive information without requiring additional execution privileges.
This particular vulnerability aligns with CWE-284 which specifically addresses improper access control issues, where inadequate permission checking creates pathways for unauthorized data access. The technical implementation flaw manifests when the validationtools component fails to properly verify whether the requesting user or process possesses the necessary privileges to access specific resources or perform certain operations. The missing permission check creates an attack surface where local information disclosure becomes possible through direct access to protected system resources or data structures.
The operational impact of this vulnerability extends beyond simple information disclosure as it represents a fundamental breakdown in the system's security model. Attackers can exploit this weakness to access sensitive data that should normally be restricted to authorized users or processes. The lack of additional execution privileges requirement means that even users with minimal system access can potentially leverage this vulnerability to gather confidential information, making the attack vector particularly concerning for environments where privilege separation is critical. This vulnerability essentially allows for privilege escalation through information gathering rather than direct execution control.
From a threat modeling perspective, this vulnerability maps to ATT&CK technique T1005 which involves data from local system storage, and T1068 which covers privilege escalation through local exploitation. The attack surface is particularly dangerous because it operates at the validation layer where multiple system components may interact, potentially allowing for cascading effects where information obtained through this vulnerability can be used to further compromise the system. Organizations should consider this vulnerability as part of a broader attack chain where initial information gathering leads to more sophisticated exploitation techniques.
The recommended mitigations include implementing comprehensive permission validation checks throughout the validationtools component, ensuring that all access requests are properly authenticated and authorized before any information disclosure occurs. System administrators should conduct thorough access control reviews to identify potential gaps in permission checking mechanisms and implement proper logging to detect unauthorized access attempts. Additionally, regular security audits should be performed to ensure that all system components properly enforce authorization controls, and that any changes to access control logic maintain the integrity of the security model. The implementation of least privilege principles should be enforced to minimize the potential impact of such vulnerabilities.