CVE-2023-42635 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-2023-42635 resides within the validationtools component where a missing permission check has been discovered that could potentially lead to local information disclosure. This issue represents a critical security flaw that undermines the integrity of access controls within the system. The vulnerability stems from insufficient validation of user permissions during critical operations, allowing unauthorized access to sensitive information that should be restricted to privileged users only. Such a flaw can be particularly dangerous in environments where multiple users share the same system resources and where proper segregation of duties is essential for maintaining security posture.
The technical implementation of this vulnerability manifests as a failure in the permission validation mechanism that should normally enforce access control policies. When the validationtools component processes requests or operations, it fails to properly verify whether the requesting user possesses the necessary privileges to access specific resources or data. This missing validation step creates an exploitable condition where any local user can potentially retrieve information that would normally be restricted. The flaw operates at the application level where security controls should be enforced, making it particularly concerning as it bypasses expected authorization mechanisms without requiring additional execution privileges or elevated access rights. This type of vulnerability aligns with CWE-284 which specifically addresses improper access control issues and represents a classic example of insufficient authorization checks in software applications.
The operational impact of CVE-2023-42635 extends beyond simple information disclosure as it fundamentally compromises the trust model of the affected system. Local users who would normally be restricted from accessing certain data can now potentially obtain sensitive information that may include system configurations, user credentials, or other confidential data. This information disclosure can serve as a foundation for further attacks, potentially enabling attackers to escalate privileges or conduct more sophisticated reconnaissance activities. The vulnerability's local nature means that exploitation does not require network access or remote attack vectors, making it particularly dangerous as it can be leveraged by any user with local access to the system. The lack of additional execution privileges needed for exploitation increases the attack surface significantly, as it removes barriers that would normally prevent casual exploitation.
Mitigation strategies for this vulnerability should focus on implementing proper permission validation mechanisms within the validationtools component. System administrators should immediately apply available patches or updates that address the missing permission check issue. Organizations should also conduct thorough audits of their access control mechanisms to identify similar vulnerabilities in other components of their software stack. The remediation process should include implementing robust authorization checks that verify user privileges before granting access to sensitive information. Additionally, implementing principle of least privilege practices can help minimize the potential impact of such vulnerabilities by ensuring that even if a user gains unauthorized access to information, the scope of that access remains limited. Security monitoring should be enhanced to detect unusual access patterns that might indicate exploitation attempts, and regular security assessments should be performed to identify and remediate similar issues across the entire software ecosystem. This vulnerability demonstrates the critical importance of proper access control implementation and serves as a reminder of the necessity for comprehensive security testing throughout the software development lifecycle to prevent such issues from reaching production environments.