CVE-2024-44229 in iOS
Summary
by MITRE • 10/28/2024
An information leakage was addressed with additional validation. This issue is fixed in Safari 18.1, iOS 18.1 and iPadOS 18.1, macOS Sequoia 15.1, visionOS 2.1. Private browsing may leak some browsing history.
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Analysis
by VulDB Data Team • 04/07/2026
The vulnerability identified as CVE-2024-44229 represents a significant information leakage issue within Apple's Safari browser and related operating systems. This flaw emerged from insufficient validation mechanisms that allowed private browsing sessions to inadvertently expose browsing history data to unauthorized parties. The vulnerability specifically affects Safari versions prior to 18.1 and operating systems including iOS 18.1, iPadOS 18.1, macOS Sequoia 15.1, and visionOS 2.1, indicating a broad impact across Apple's ecosystem. The issue stems from inadequate input validation and data handling procedures that fail to properly isolate private browsing contexts from regular browsing activities, creating potential exposure pathways for sensitive user information.
The technical nature of this vulnerability aligns with CWE-200, which addresses "Information Exposure," and represents a failure in proper access control and data isolation mechanisms. When users engage in private browsing sessions, the system should maintain strict separation between private and public data contexts. However, this flaw allows for cross-contamination where browsing history elements from private sessions can be accessed or reconstructed through various system interfaces. The vulnerability operates at the application layer where browser privacy controls are implemented, potentially leveraging memory corruption or improper data handling techniques to expose previously isolated information. This type of information leakage can occur through multiple vectors including cache mechanisms, temporary file storage, or even network protocol handling that fails to properly sanitize private browsing data.
The operational impact of CVE-2024-44229 extends beyond simple privacy concerns to encompass potential security risks for users who rely on private browsing for sensitive activities. Attackers could exploit this vulnerability to reconstruct browsing patterns, access previously private web sessions, or gather intelligence about user behavior and online activities. The exposure of browsing history in private mode undermines the fundamental security model that users expect from private browsing features, potentially compromising business operations, personal relationships, or sensitive research activities. This vulnerability directly impacts the trust model between users and the browser, as users may unknowingly expose their private browsing data through normal web interactions. The risk is particularly elevated in environments where multiple users share devices or when sensitive information is accessed through private browsing sessions.
Mitigation strategies for CVE-2024-44229 primarily focus on immediate system updates to the patched versions mentioned in the advisory. Organizations should prioritize deployment of Safari 18.1, iOS 18.1, iPadOS 18.1, macOS Sequoia 15.1, and visionOS 2.1 across all affected devices. System administrators should implement comprehensive patch management procedures to ensure all endpoints receive the security updates promptly. Additional protective measures include disabling private browsing features where possible, implementing network monitoring to detect unusual data access patterns, and conducting regular security assessments of browser configurations. The vulnerability also highlights the importance of following ATT&CK framework principles for mitigating information exposure attacks, particularly focusing on techniques related to credential access and defense evasion. Organizations should also consider implementing browser hardening measures, including disabling unnecessary browser features, restricting access to sensitive APIs, and employing network segmentation to limit potential data leakage pathways. Regular security awareness training for users about the risks of private browsing and proper security practices remains essential in mitigating the broader impact of such vulnerabilities.