CVE-2024-27869 in iOS
Summary
by MITRE • 09/17/2024
The issue was addressed with improved checks. This issue is fixed in iOS 18 and iPadOS 18, macOS Sequoia 15. An app may be able to record the screen without an indicator.
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Analysis
by VulDB Data Team • 09/18/2024
The vulnerability identified as CVE-2024-27869 represents a critical security flaw in Apple's operating systems that undermines user privacy and system integrity. This issue specifically affects iOS 18 and iPadOS 18 as well as macOS Sequoia 15, where the security mechanisms designed to prevent unauthorized screen recording have been compromised. The vulnerability stems from insufficient validation checks that allow malicious applications to bypass the standard security protocols that should prevent screen recording activities from occurring without proper user notification. The flaw creates a scenario where applications can capture screen content silently, without displaying the customary visual indicators that inform users when their screen is being recorded. This represents a significant deviation from Apple's established security model where user awareness and consent are fundamental principles in privacy protection. The vulnerability is categorized under CWE-652, which addresses "Improper Neutralization of Special Elements used in a Code Context," indicating that the security checks fail to properly validate or sanitize the conditions under which screen recording can be initiated.
The technical implementation of this vulnerability exploits weaknesses in the operating system's permission and monitoring mechanisms. When an application attempts to initiate screen recording, the system should enforce strict validation procedures that include user consent prompts and visual indicators. However, the flaw allows applications to circumvent these checks through improper input validation or by exploiting gaps in the security architecture. This issue particularly affects the integrity of the user interface and security model by removing the essential visual feedback that users rely upon to understand when their screen is being monitored. The vulnerability demonstrates a failure in the principle of least privilege and transparency, where applications should not be able to perform potentially invasive operations without explicit user awareness and consent. Security researchers have identified that the flaw exists in the system-level APIs that handle screen recording permissions, where inadequate parameter validation allows unauthorized access to recording capabilities.
The operational impact of CVE-2024-27869 extends beyond simple privacy concerns to encompass broader security implications for users and organizations relying on Apple's platforms. Attackers could potentially exploit this vulnerability to capture sensitive information, passwords, personal data, or confidential business communications without users being aware of the surveillance. This capability creates opportunities for targeted surveillance, data theft, and privacy violations that could affect individuals, enterprises, and government agencies. The vulnerability also undermines trust in the security model of Apple's ecosystem, as users expect robust protection against unauthorized screen access. Organizations that depend on Apple devices for sensitive operations may face increased risk of data breaches and compliance violations, particularly in regulated environments where monitoring and transparency requirements are stringent. The potential for abuse is significant given that screen recording is a powerful capability that can capture everything displayed on a device screen, including passwords, confidential documents, and personal communications.
Mitigation strategies for this vulnerability require immediate system updates and user awareness measures. Apple has addressed the issue through the release of iOS 18, iPadOS 18, and macOS Sequoia 15, which implement enhanced validation checks and improved security protocols for screen recording operations. Users should promptly install these updates to protect their devices from exploitation. Organizations should also implement additional monitoring measures to detect unusual application behavior and ensure that security policies are enforced across their device fleets. The vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates the critical nature of continuous security monitoring in preventing exploitation of such flaws. Security professionals should also consider implementing network monitoring and application behavior analysis to detect potential misuse of screen recording capabilities. This vulnerability aligns with ATT&CK technique T1566, which covers credential access through various methods including screen recording and monitoring activities, emphasizing the need for comprehensive security measures that address both endpoint and network-level protection.