CVE-2018-4348 in macOS
Summary
by MITRE
A validation issue was addressed with improved logic. This issue affected versions prior to macOS Mojave 10.14.
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Analysis
by VulDB Data Team • 07/24/2024
The vulnerability identified as CVE-2018-4348 represents a validation flaw that impacted macOS versions prior to the release of macOS Mojave 10.14. This issue falls under the broader category of input validation problems that can compromise system integrity and security posture. The vulnerability was categorized as a validation issue that required improved logic to prevent potential exploitation. The affected systems were those running macOS versions earlier than 10.14, indicating that Apple's security team identified this weakness in their validation mechanisms before implementing enhanced safeguards in their subsequent operating system release.
The technical nature of this validation issue suggests that the flaw likely involved insufficient input sanitization or improper validation of user-supplied data within macOS system components. Such validation problems typically occur when applications or system processes fail to properly verify the integrity, format, or legitimacy of data before processing it. This type of vulnerability can potentially enable attackers to manipulate system behavior through crafted inputs that bypass normal validation checks. The issue was specifically addressed through enhanced validation logic, which implies that Apple identified gaps in their existing validation routines and implemented additional safeguards to prevent the exploitation of these weaknesses.
The operational impact of CVE-2018-4348 extends beyond simple data validation concerns as it represents a potential vector for privilege escalation or system compromise. Systems running affected macOS versions would have been vulnerable to attacks that exploit the validation flaw, potentially allowing unauthorized access to system resources or modification of system behavior. This vulnerability aligns with common attack patterns described in the ATT&CK framework under defense evasion and privilege escalation techniques where validation bypasses are commonly employed. The issue demonstrates how seemingly minor validation flaws can create significant security risks when they affect core system components that handle user input or system configuration data.
From a security standards perspective, this vulnerability relates to CWE-20, which describes "Improper Input Validation" as a fundamental weakness in software design that occurs when input is not properly validated before being processed. The remediation approach taken by Apple through improved logic represents a standard security practice of strengthening input validation mechanisms. Organizations should prioritize updating to macOS Mojave 10.14 or later versions to address this vulnerability, as the improved validation logic provides protection against potential exploitation attempts. The vulnerability also highlights the importance of regular security updates and the need for organizations to maintain current operating system versions to protect against known security weaknesses. Security teams should monitor for similar validation issues in other system components and ensure that their incident response procedures include assessment of validation-related vulnerabilities that could impact system integrity and user data protection.