CVE-2019-8575 in AirPort Base Station
Summary
by MITRE • 10/28/2020
The issue was addressed with improved data deletion. This issue is fixed in AirPort Base Station Firmware Update 7.8.1, AirPort Base Station Firmware Update 7.9.1. A base station factory reset may not delete all user information.
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Analysis
by VulDB Data Team • 09/26/2023
The vulnerability identified as CVE-2019-8575 represents a critical data sanitization flaw within Apple AirPort Base Station firmware implementations. This security weakness specifically manifests in the improper handling of user data deletion during factory reset operations, creating potential persistent exposure of sensitive information. The issue stems from inadequate memory sanitization processes that fail to completely erase all user data from storage media during the reset procedure. The vulnerability affects multiple firmware versions of AirPort Base Stations, with the problem being resolved through updates to firmware versions 7.8.1 and 7.9.1. This type of flaw falls under the broader category of insufficient data sanitization, which is classified as CWE-200 in the Common Weakness Enumeration catalog and represents a significant concern for data privacy and security compliance.
The technical implementation flaw occurs at the firmware level where the factory reset functionality does not properly overwrite or securely erase all data sectors containing user information. When users perform a factory reset on affected AirPort Base Stations, the system fails to completely eliminate stored credentials, network configurations, user preferences, and potentially sensitive operational data. This incomplete data deletion creates a scenario where residual information could be recovered through forensic analysis or unauthorized access attempts. The vulnerability demonstrates poor adherence to secure deletion practices as outlined in industry standards and security frameworks, particularly concerning the handling of sensitive data in embedded systems and network infrastructure devices. The flaw represents a failure in implementing proper cryptographic erase techniques or secure overwrite procedures that would ensure complete data destruction.
The operational impact of this vulnerability extends beyond simple privacy concerns to encompass potential security breaches and compliance violations. Organizations relying on AirPort Base Stations for network infrastructure may face risks when decommissioning or reconfiguring devices, as the incomplete data deletion could expose confidential network credentials, user access information, and operational parameters. This vulnerability particularly affects enterprise environments where network security policies require proper data sanitization during device lifecycle management. The issue creates a persistent risk vector where compromised devices could potentially leak information even after intended removal from service, undermining trust in the device's security capabilities and potentially violating data protection regulations such as GDPR or HIPAA requirements for secure data disposal. The vulnerability also impacts the integrity of security audits and compliance assessments where device sanitization practices are scrutinized.
Mitigation strategies for CVE-2019-8575 require immediate firmware updates to versions 7.8.1 or 7.9.1, which contain the necessary improvements to data deletion mechanisms. Network administrators should conduct comprehensive inventory assessments to identify all affected AirPort Base Stations within their infrastructure and prioritize updates accordingly. Organizations should implement additional operational controls such as manual data verification procedures before device decommissioning and maintain detailed records of firmware versions across their network infrastructure. The remediation process should include verification testing to confirm that the updated firmware properly executes complete data sanitization during factory reset operations. Security teams should consider implementing network monitoring to detect unauthorized access attempts to affected devices and establish protocols for secure device disposal that go beyond simple factory resets. This vulnerability highlights the importance of secure data handling practices in embedded systems and underscores the necessity of following established security frameworks such as those defined in the MITRE ATT&CK matrix for network infrastructure security.