CVE-2018-4397 in Support
Summary
by MITRE
Analytics data was sent using HTTP rather than HTTPS. This was addressed by sending analytics data using HTTPS. This issue affected versions prior to Apple Support 2.4 for iOS.
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Analysis
by VulDB Data Team • 08/22/2023
The vulnerability described in CVE-2018-4397 represents a significant security flaw in Apple Support applications for iOS devices where analytics data was transmitted over unencrypted HTTP connections instead of secure HTTPS protocols. This issue falls under the category of insecure communication practices that expose sensitive information to potential interception and manipulation. The flaw existed in versions of Apple Support prior to 2.4 for iOS, indicating that Apple recognized the severity of transmitting analytics data without proper encryption mechanisms. This vulnerability directly violates fundamental security principles outlined in the OWASP Top Ten, specifically addressing the risk of information exposure through unencrypted communications. The technical implementation error stems from improper protocol selection during data transmission, where the application failed to enforce secure communication channels for analytics payloads. This misconfiguration creates an attack surface that allows man-in-the-middle adversaries to intercept, modify, or steal the analytics data being transmitted from user devices to Apple's servers.
The operational impact of this vulnerability extends beyond simple data exposure, as analytics data often contains sensitive information about user behavior, device configurations, application usage patterns, and potentially personal identifiers. When transmitted over HTTP, this data becomes susceptible to network-based attacks including packet sniffing, session hijacking, and traffic manipulation. The vulnerability aligns with CWE-319, which specifically addresses the exposure of sensitive information through improper use of network protocols. Attackers could exploit this weakness to gain insights into user activities, potentially enabling more sophisticated attacks such as targeted phishing campaigns or social engineering attempts based on collected behavioral analytics. The issue represents a failure in secure coding practices and demonstrates the importance of implementing mandatory encryption for all data transmission channels, particularly those containing user-related information. This vulnerability also reflects poorly on Apple's security posture and highlights the need for comprehensive security testing of mobile applications before deployment.
Mitigation strategies for CVE-2018-4397 involve implementing proper protocol enforcement mechanisms within the application code to ensure all data transmission occurs over secure HTTPS connections. The fix required Apple to update the Apple Support application to enforce HTTPS usage for all analytics data transmission, eliminating the possibility of unencrypted communication. Organizations should implement network monitoring to detect and prevent unauthorized HTTP traffic, while also ensuring that all third-party libraries and components used in mobile applications properly enforce secure communication protocols. The solution demonstrates the importance of following the principle of least privilege in network communications, where applications should automatically enforce secure transmission methods without requiring manual configuration. Security teams should conduct regular vulnerability assessments of mobile applications to identify similar issues, particularly focusing on data transmission practices and protocol enforcement. This vulnerability serves as a reminder of the critical importance of implementing secure coding practices and following industry standards such as those defined in the NIST Cybersecurity Framework, which emphasizes the protection of information systems through proper configuration management and secure communication protocols. The remediation process also underscores the necessity of maintaining up-to-date security patches and ensuring that mobile applications continuously enforce security best practices throughout their lifecycle.