CVE-2024-44276 is a vulnerability identified in Apple’s iOS and iPadOS platforms that allows a user in a privileged network position to leak sensitive information. The root cause stems from the transmission of data over the network without mandatory HTTPS encryption, exposing sensitive information to interception or eavesdropping. This vulnerability is classified under CWE-319, which relates to the cleartext transmission of sensitive information. The issue was resolved by Apple in iOS and iPadOS version 18.2 by enforcing HTTPS for all relevant network communications, thereby protecting data confidentiality and integrity during transit. The CVSS v3.1 base score is 7.3 (high), reflecting the network attack vector (AV:N), low attack complexity (AC:L), required privileges (PR:L), and user interaction (UI:R). The scope is unchanged (S:U), but the impact on confidentiality and integrity is high (C:H/I:H), with no impact on availability (A:N). Exploitation requires an attacker to be in a privileged network position, such as a man-in-the-middle (MITM) on the same network segment, and to trick the user into interaction, possibly through phishing or malicious content. No known exploits have been reported in the wild yet, but the vulnerability poses a significant risk in environments where network traffic can be intercepted. This vulnerability affects all versions of iOS and iPadOS prior to 18.2.

The primary impact of CVE-2024-44276 is the potential leakage of sensitive information transmitted by iOS and iPadOS devices over the network. This compromises confidentiality and integrity, potentially exposing user credentials, personal data, or corporate information to attackers positioned on the network path. Organizations relying on Apple mobile devices for sensitive communications, especially in sectors like finance, healthcare, government, and enterprise environments, face increased risk of data breaches and espionage. The vulnerability could facilitate further attacks such as session hijacking, identity theft, or unauthorized access to internal resources. Although availability is not affected, the breach of confidentiality and integrity can lead to significant operational and reputational damage. The requirement for user interaction and privileged network access limits the scope somewhat but does not eliminate the risk, particularly in public or compromised networks.

To mitigate CVE-2024-44276, organizations and users should promptly update all affected Apple devices to iOS and iPadOS version 18.2 or later, where HTTPS enforcement is implemented. Network administrators should enforce the use of secure communication protocols (TLS/HTTPS) within their environments and consider deploying network-level protections such as encrypted VPNs to reduce exposure to privileged network attackers. Implementing network segmentation and monitoring for unusual network activity can help detect potential MITM attempts. User education is critical to reduce the risk of social engineering or phishing that could facilitate exploitation requiring user interaction. Additionally, organizations should audit applications and services on iOS/iPadOS devices to ensure they do not transmit sensitive data over unencrypted channels. Regular vulnerability scanning and penetration testing can help identify residual risks. Finally, applying strict access controls and using mobile device management (MDM) solutions can help enforce security policies and timely patch deployment.