CVE-2023-42637 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-2023-42637 resides within the validationtools component where a missing permission check has been discovered that could potentially allow for local information disclosure. This flaw represents a significant security concern as it enables unauthorized access to sensitive data without requiring any additional execution privileges, making it particularly dangerous in environments where multiple users or processes share the same system resources. The validationtools component typically serves as a critical interface for verifying system integrity and validating various security parameters, making this permission bypass particularly concerning for overall system security posture.
The technical implementation of this vulnerability stems from inadequate access control mechanisms within the validationtools framework. When the system performs validation operations, it fails to properly verify whether the requesting process or user has appropriate authorization levels to access the specific data being validated. This missing permission check creates an exploitable gap where any local process can potentially retrieve information that should be restricted to authorized users or specific system components. The vulnerability manifests as a failure to enforce mandatory access controls, which is a direct violation of the principle of least privilege that forms the foundation of secure system design. According to CWE-284, this vulnerability maps to improper access control issues where the system fails to properly enforce access restrictions, creating a pathway for unauthorized data access.
From an operational impact perspective, this vulnerability could enable attackers to extract sensitive configuration data, system parameters, or validation results that might reveal information about the underlying system architecture, security policies, or other confidential details. The local information disclosure could potentially expose system vulnerabilities, user credentials, or other sensitive metadata that could be leveraged for further attacks. Attackers could use this information to craft more sophisticated attacks, escalate privileges, or identify additional weaknesses in the system. The absence of additional execution privileges required to exploit this vulnerability makes it particularly dangerous as it can be exploited by any local user or process with basic system access, significantly broadening the attack surface and reducing the barriers to successful exploitation.
Mitigation strategies for CVE-2023-42637 should focus on implementing robust access control mechanisms within the validationtools component. System administrators should ensure that all validation operations properly verify user permissions and enforce appropriate access controls before allowing data retrieval. The fix should involve adding comprehensive permission checks that validate the identity and authorization level of requesting processes before granting access to sensitive validation data. Additionally, implementing proper logging and monitoring of validation tool access can help detect unauthorized attempts to access restricted information. Organizations should also consider applying the latest security patches provided by the vendor, as this vulnerability likely represents a known issue that has been addressed through software updates. The remediation aligns with ATT&CK technique T1074.001 for data staging and T1005 for data from local system, as the vulnerability enables unauthorized data collection from system validation components without requiring elevated privileges or additional malicious execution capabilities.