CVE-2023-42845 in macOS
Summary
by MITRE • 10/25/2023
An authentication issue was addressed with improved state management. This issue is fixed in macOS Sonoma 14.1, iOS 17.1 and iPadOS 17.1. Photos in the Hidden Photos Album may be viewed without authentication.
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Analysis
by VulDB Data Team • 11/17/2023
The vulnerability described in CVE-2023-42845 represents a critical authentication flaw within Apple's mobile operating systems that allows unauthorized access to sensitive user data stored in the Hidden Photos Album. This issue stems from inadequate state management during the authentication process, creating a security loophole that bypasses the intended protection mechanisms for private photo collections. The vulnerability affects multiple Apple platforms including macOS Sonoma 14.1, iOS 17.1, and iPadOS 17.1, indicating a widespread implementation of the flawed authentication logic across the Apple ecosystem. The flaw specifically impacts the Hidden Photos Album functionality, which is designed to provide users with a secure repository for sensitive images that should only be accessible through proper authentication.
The technical root cause of this vulnerability lies in the improper handling of application state transitions during authentication workflows. When users attempt to access their hidden photo albums, the system should enforce strict authentication checks before granting access to the protected content. However, the flawed state management implementation allows for a race condition or state inconsistency that enables unauthorized access to the hidden photo collection without proper authentication. This type of vulnerability falls under the CWE-284 access control weakness category, specifically related to improper access control mechanisms that fail to properly validate user credentials before granting access to protected resources. The issue demonstrates a fundamental breakdown in the principle of least privilege, where users can bypass the intended security controls that should protect sensitive personal data.
The operational impact of this vulnerability extends beyond simple privacy concerns to encompass significant data exposure risks for affected users. The Hidden Photos Album is specifically designed to store sensitive personal content that users expect to be protected from unauthorized access, including potentially compromising images, private photographs, or other confidential visual data. Attackers who exploit this vulnerability can gain immediate access to these protected collections without requiring knowledge of passcodes, biometric authentication, or other security credentials. This creates a scenario where personal privacy is compromised at the system level, potentially exposing users to identity theft, blackmail, or other malicious activities that could leverage the sensitive content stored in these hidden albums. The vulnerability's impact is particularly concerning given that it affects multiple Apple platforms, suggesting a systemic issue that could impact millions of users across different device types.
Apple addressed this vulnerability through a comprehensive update that improved state management within the authentication framework, ensuring that proper authentication checks are enforced before granting access to the Hidden Photos Album. The fix implemented in macOS Sonoma 14.1, iOS 17.1, and iPadOS 17.1 represents a security patch that corrects the flawed state transition handling, thereby restoring the intended access control mechanisms. Organizations and users should prioritize updating to these patched versions to mitigate the risk of unauthorized access to sensitive photo collections. Security professionals should consider this vulnerability as a potential indicator of broader authentication system weaknesses that may exist in other applications or platforms, particularly those that rely on similar state management approaches. The remediation approach aligns with ATT&CK framework techniques related to privilege escalation and credential access, emphasizing the importance of proper state validation in authentication systems. Users should be advised to immediately install the security updates and consider additional security measures such as strong passcode enforcement and regular backup verification to protect their sensitive data from potential exploitation.