CVE-2023-42639 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-2023-42639 resides within the validationtools component where a missing permission check has been discovered that could potentially result in local information disclosure. This flaw represents a critical security weakness that undermines the integrity of access controls within the system. The validationtools module typically serves as a gatekeeper for various validation processes, making it a prime target for adversaries seeking unauthorized access to sensitive information. The vulnerability stems from inadequate authorization checks that should normally verify whether a requesting process or user has proper privileges before granting access to protected resources. This missing validation mechanism creates an exploitable gap in the security architecture that can be leveraged by local attackers who do not require additional execution privileges to exploit the vulnerability.
The technical nature of this vulnerability aligns with CWE-284, which specifically addresses improper access control issues where insufficient checks are performed to verify that an actor has appropriate permissions to access a resource. The flaw operates at the authorization level rather than authentication, meaning that even if an attacker can authenticate successfully, they may still be able to access restricted information due to the missing permission validation. This type of vulnerability is particularly concerning because it can be exploited by malicious actors who are already running processes on the system, potentially leading to information leakage that could include sensitive configuration data, user credentials, system logs, or other confidential information. The lack of additional execution privileges required for exploitation makes this vulnerability especially dangerous as it can be leveraged by attackers with minimal initial access.
From an operational perspective, this vulnerability could have significant impact on organizations relying on validationtools for their security infrastructure. The local information disclosure threat means that attackers with low-privilege accounts or processes could potentially access sensitive data that should be restricted to authorized personnel only. The implications extend beyond simple data exposure as this information could be used for further attacks, including privilege escalation attempts, lateral movement within the network, or targeted attacks against other systems. The vulnerability's characteristics make it particularly attractive to attackers who prefer to operate with minimal detection, as the exploitation does not require additional code execution or privilege escalation beyond what is already available to the local process. This makes the vulnerability particularly challenging to detect and mitigate in production environments.
Organizations should implement immediate mitigations to address this vulnerability including conducting comprehensive access control reviews and ensuring all permission checks are properly implemented and validated. The recommended approach involves strengthening the authorization mechanisms within validationtools to enforce proper permission validation before granting access to sensitive information. Security teams should also consider implementing monitoring solutions that can detect unauthorized access attempts to sensitive resources, particularly those that might be targeted by this type of vulnerability. Additionally, regular security assessments and penetration testing should be conducted to identify similar permission-related issues that may exist within other system components. The mitigation strategy should align with the principles outlined in the ATT&CK framework under the privilege escalation and credential access tactics, ensuring that the security controls are robust enough to prevent unauthorized information disclosure. Organizations should also review their privilege management policies and ensure that the principle of least privilege is properly enforced across all system components, particularly those handling validation and authorization functions.