CVE-2009-2207 in iPhone OS
Summary
by MITRE
The MobileMail component in Apple iPhone OS 3.0 and 3.0.1, and iPhone OS 3.0 for iPod touch, lists deleted e-mail messages in Spotlight search results, which might allow local users to obtain sensitive information by reading these messages.
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Analysis
by VulDB Data Team • 06/15/2017
The vulnerability described in CVE-2009-2207 represents a significant information disclosure flaw within Apple's MobileMail component that affected iPhone OS versions 3.0 and 3.0.1 across both iPhone and iPod touch devices. This issue stems from improper handling of deleted email messages within the Spotlight search functionality, creating a persistent security gap that undermines the confidentiality of user communications. The flaw specifically manifests when users perform Spotlight searches on their mobile devices, where deleted emails remain accessible through the search index despite being marked for deletion.
The technical implementation of this vulnerability involves the MobileMail application's failure to properly purge deleted email content from the Spotlight search database. When users delete emails from their iPhone or iPod touch devices, the system should ensure complete removal of both the message content and associated metadata from all indexed locations. However, the flawed implementation maintains references to deleted messages within the Spotlight search index, allowing unauthorized access to previously deleted communications through simple search queries. This behavior violates fundamental security principles of data sanitization and access control, particularly concerning sensitive information handling on mobile platforms.
From an operational impact perspective, this vulnerability creates a serious risk for users who handle sensitive or confidential information on their mobile devices. Local attackers with physical access to compromised devices can easily retrieve deleted emails containing personal data, financial information, business communications, or other classified content simply by utilizing the Spotlight search feature. The vulnerability is particularly concerning given that it affects the core email functionality of mobile devices, which are frequently used for business communications and contain extensive personal information. The impact extends beyond individual privacy concerns to potential corporate data breaches, as employees may store sensitive organizational information in their personal email accounts.
The vulnerability aligns with CWE-200, which describes improper information disclosure, and demonstrates weaknesses in secure data handling and access control mechanisms. From an attack perspective, this flaw maps to ATT&CK technique T1005, which covers data from local system, as attackers can access deleted data through legitimate search functionality. The vulnerability also reflects poor input validation and data sanitization practices that are commonly exploited in mobile security contexts. The affected platforms represent a significant attack surface given the widespread adoption of iPhone OS 3.0 and 3.0.1, making this vulnerability particularly dangerous in enterprise environments where mobile device security is paramount.
Mitigation strategies for this vulnerability require immediate system updates from Apple, as the flaw exists at the operating system level rather than individual applications. Users should ensure their devices are updated to the latest available iPhone OS versions that address this specific issue. Additionally, organizations should implement mobile device management policies that enforce automatic updates and regular security assessments. Network administrators should consider implementing additional monitoring of search activities and access patterns that might indicate unauthorized data retrieval attempts. Security professionals should also review existing data protection policies to ensure that deleted communications are properly sanitized from all indexed locations, including backup systems and cloud storage services that may maintain copies of mobile device content.