CVE-2025-31228 in iOS
Summary
by MITRE • 05/13/2025
The issue was addressed with improved authentication. This issue is fixed in iPadOS 17.7.7, iOS 18.5 and iPadOS 18.5. An attacker with physical access to a device may be able to access notes from the lock screen.
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Analysis
by VulDB Data Team • 05/28/2025
This vulnerability represents a significant security flaw in apple's mobile operating systems that undermines the fundamental security model of device lock screens. The issue stems from inadequate authentication mechanisms that fail to properly enforce access controls when users attempt to view sensitive information on locked devices. According to industry standards, this type of vulnerability aligns with cwe-287 which addresses improper authentication flaws, and specifically relates to the failure of proper access control enforcement at the user interface level. The vulnerability exists in the context of device lock screen protection mechanisms where legitimate security boundaries are bypassed through physical access exploitation.
The technical flaw manifests when an attacker with physical possession of a device can bypass the intended authentication requirements to access notes stored on the device. This represents a critical failure in the operating system's security architecture where the lock screen protection mechanisms are insufficient to prevent unauthorized access to sensitive data. The vulnerability specifically affects the notes application and potentially other data types that may be accessible through similar mechanisms on the lock screen interface. The flaw demonstrates a weakness in the authentication flow where the system fails to properly validate user credentials or authorization status before granting access to protected content.
The operational impact of this vulnerability is substantial as it allows attackers with physical access to devices to obtain sensitive information without proper authorization. This creates a significant risk for users who store confidential data in notes applications, potentially exposing personal information, business secrets, or other sensitive content. The vulnerability is particularly concerning because it does not require network connectivity or complex attack vectors, making it exploitable through simple physical access. From an att&ck framework perspective, this vulnerability maps to technique t1546 001 which covers bypassing user account control and t1059 001 for command and scripting interpreter, though the primary concern here is the failure of the authentication system itself. The attack surface is limited to physical access scenarios but represents a critical failure in device security.
Apple addressed this vulnerability through improved authentication mechanisms in versions iPadOS 17.7.7, iOS 18.5, and iPadOS 18.5. The fix likely involves strengthening the lock screen authentication checks to properly validate user authorization before granting access to notes and other sensitive applications. Organizations should prioritize deployment of these updates across all affected devices to mitigate the risk. Users should also consider additional protective measures such as enabling strong passcodes, utilizing biometric authentication where available, and being mindful of device physical security. The vulnerability highlights the importance of comprehensive security testing, particularly around authentication flows and lock screen protections, as these are fundamental components of mobile device security that directly impact user data protection.