CVE-2023-42641 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-2023-42641 resides within the validationtools component where a missing permission check has been discovered that could potentially lead to local information disclosure. This type of vulnerability falls under the category of insufficient authorization checks and represents a significant security concern for systems that rely on proper access control mechanisms. The flaw specifically affects the validationtools module which is typically responsible for verifying the integrity and authenticity of various system components or user inputs. According to CWE-284, this vulnerability maps directly to improper access control issues where the system fails to properly validate whether an entity has the necessary permissions to access specific resources or perform particular operations.
The technical implementation of this vulnerability stems from inadequate permission validation logic within the validationtools component. When the system processes validation requests, it appears to bypass essential authorization checks that should verify whether the requesting entity possesses the appropriate privileges to access the targeted resources. This missing validation step creates an opportunity for local attackers to potentially access sensitive information that should otherwise be restricted. The vulnerability does not require additional execution privileges, meaning that an attacker with basic local access can exploit this flaw to gain unauthorized information disclosure. This characteristic significantly increases the attack surface and makes the vulnerability particularly concerning for environments where local privilege escalation is not strictly controlled.
The operational impact of this vulnerability extends beyond simple information disclosure as it represents a fundamental breakdown in the system's security architecture. Local information disclosure can lead to exposure of sensitive configuration data, authentication tokens, system credentials, or other confidential information that could be leveraged for further attacks. The lack of additional execution privileges required for exploitation means that this vulnerability can be exploited by any local user, potentially including unprivileged accounts or service accounts that may have limited access but still possess the ability to interact with the vulnerable component. This scenario aligns with ATT&CK technique T1078 which covers legitimate credentials and abuse of privileges, where attackers can exploit weak permission checks to access restricted information.
Mitigation strategies for CVE-2023-42641 should focus on implementing proper access control mechanisms within the validationtools component. The most effective approach involves adding comprehensive permission checks that validate the requesting entity's authorization level before allowing access to sensitive resources. System administrators should ensure that all validation operations include proper authentication and authorization verification steps to prevent unauthorized access. Additionally, implementing principle of least privilege configurations can help minimize the potential impact of such vulnerabilities by limiting what information and resources are accessible to different user accounts. Regular security audits and code reviews should be conducted to identify similar permission check gaps within other system components. Organizations should also consider implementing monitoring solutions that can detect unusual access patterns or attempts to access restricted resources, providing additional layers of defense against exploitation of this type of vulnerability.