CVE-2023-42636 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-2023-42636 resides within the validationtools component where a critical missing permission check has been discovered. This flaw represents a significant security weakness that allows unauthorized local access to sensitive information without requiring any additional privileges or execution rights. The validationtools framework typically handles various validation processes and security checks, making this vulnerability particularly concerning as it could potentially expose sensitive data to any local user who can interact with the system. The absence of proper permission verification creates an attack surface that could be exploited by malicious actors or compromised processes running on the same system.
This technical flaw falls under the category of insufficient privilege checks and can be classified as a CWE-284 access control vulnerability where the system fails to properly verify whether an operation should be permitted based on the requesting entity's privileges. The vulnerability operates at the local system level rather than requiring network access or elevated privileges, making it particularly dangerous as it can be exploited by any user with local access to the system. The missing permission check essentially allows any local process to bypass normal access controls and retrieve information that should typically be restricted to authorized users or processes. This type of vulnerability aligns with ATT&CK technique T1074.001 data staging where adversaries can access sensitive information from local system components.
The operational impact of CVE-2023-42636 extends beyond simple information disclosure as it can potentially expose system configuration details, user credentials, or other sensitive data that could be leveraged for further attacks. Local information disclosure vulnerabilities are particularly dangerous because they can provide attackers with insights into system architecture, security configurations, and potential attack vectors that could lead to privilege escalation or lateral movement within the network. The vulnerability's impact is amplified by its requirement for no additional execution privileges, meaning that even unprivileged users could potentially access sensitive information. This makes the vulnerability particularly attractive to threat actors who may be looking to gather intelligence before launching more sophisticated attacks or who are already operating with limited privileges but need to expand their access.
Mitigation strategies for this vulnerability should focus on implementing proper permission checks and access controls within the validationtools component. System administrators should ensure that all validation processes properly verify user privileges and that appropriate access controls are enforced for sensitive operations. The fix typically involves adding explicit permission checks before allowing access to sensitive information or system resources. Organizations should also consider implementing monitoring solutions to detect unauthorized access attempts or unusual information disclosure patterns. Additionally, regular security assessments and code reviews should be conducted to identify similar permission check deficiencies in other system components. The vulnerability highlights the importance of following secure coding practices and adhering to the principle of least privilege, ensuring that system components only access resources necessary for their specific functions. Security updates and patches should be applied promptly to address this vulnerability and prevent potential exploitation by malicious actors who may be actively targeting systems running affected software versions.