CVE-2024-44127 in iOS
Summary
by MITRE • 09/17/2024
This issue was addressed through improved state management. This issue is fixed in iOS 17.7 and iPadOS 17.7, iOS 18 and iPadOS 18. Private Browsing tabs may be accessed without authentication.
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Analysis
by VulDB Data Team • 09/21/2024
This vulnerability represents a significant security flaw in Apple's mobile operating systems that compromised the privacy and authentication mechanisms within private browsing functionality. The issue stems from inadequate state management within the browser implementation, specifically affecting iOS 17.6 and earlier versions as well as iPadOS 17.6 and earlier. The flaw allows unauthorized access to private browsing tabs through a state management vulnerability that bypasses normal authentication requirements. This represents a critical weakness in the application's security architecture where the system failed to properly maintain the authenticated state of private browsing sessions.
The technical nature of this vulnerability aligns with CWE-284 Access Control Issues, specifically related to improper access control mechanisms within the browser's session management system. The flaw occurs at the application layer where the state management system fails to properly validate user authentication status before granting access to private browsing contexts. This type of vulnerability falls under the ATT&CK technique T1548.002 Account Access Removal, as it enables unauthorized access to protected browsing sessions that should remain private and authenticated. The vulnerability exists because the system does not properly enforce authentication checks when transitioning between different browsing states or contexts.
The operational impact of this vulnerability extends beyond simple privacy concerns to potentially expose sensitive user data and browsing activities. When private browsing tabs can be accessed without authentication, users face risks including exposure of personal information, financial data, sensitive communications, and confidential business information that would normally be protected within private browsing sessions. This creates a significant risk for users who rely on private browsing for protecting their digital privacy, particularly in environments where devices may be accessed by unauthorized parties. The vulnerability affects all users of affected iOS and iPadOS versions, making it a widespread concern that impacts the core privacy functionality of the operating system.
Apple addressed this vulnerability through enhanced state management protocols that properly enforce authentication requirements for private browsing sessions. The fix implemented in iOS 17.7 and iPadOS 17.7, along with the corresponding iOS 18 and iPadOS 18 releases, strengthens the session management system to properly validate user authentication status before granting access to private browsing contexts. Organizations and users should immediately update to the affected versions to remediate this vulnerability. The mitigation strategy involves maintaining current operating system versions and implementing additional security controls for environments where unauthorized physical access to devices remains a concern. Users should also be educated about the importance of proper device security measures including passcode protection and automatic lock mechanisms to prevent unauthorized access to devices that may contain sensitive information.