CVE-2011-0143 in iTunes
Summary
by MITRE
WebKit, as used in Apple iTunes before 10.2 on Windows, allows man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via vectors related to iTunes Store browsing, a different vulnerability than other CVEs listed in APPLE-SA-2011-03-02-1.
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Analysis
by VulDB Data Team • 01/26/2025
The vulnerability identified as CVE-2011-0143 represents a critical security flaw in Apple iTunes version 10.1 and earlier on Windows platforms, specifically within the WebKit rendering engine component. This issue arises from insufficient input validation and memory management practices during iTunes Store browsing operations, creating a pathway for malicious actors to exploit the application's trust model. The vulnerability manifests when iTunes processes web content from the iTunes Store, particularly during navigation and content rendering activities, where the WebKit engine fails to properly sanitize or validate incoming data streams.
The technical exploitation of this vulnerability occurs through man-in-the-middle attack scenarios where an attacker intercepts network traffic between the iTunes client and Apple's iTunes Store servers. The flaw enables attackers to inject malicious content that, when rendered by the WebKit engine, triggers memory corruption errors leading to arbitrary code execution or application crashes. This memory corruption vulnerability stems from improper handling of buffer operations and pointer management within the WebKit component, which is responsible for rendering web-based interfaces within the iTunes application. The vulnerability is classified as a memory corruption issue that falls under CWE-121, which specifically addresses stack-based buffer overflow conditions, though the actual implementation involves heap-based memory corruption patterns typical of modern browser engine exploits.
The operational impact of CVE-2011-0143 extends beyond simple denial of service scenarios, as successful exploitation can result in complete system compromise through arbitrary code execution. Attackers can leverage this vulnerability to install malware, steal user credentials, or perform other malicious activities while the iTunes application is running. The Windows-specific nature of this vulnerability makes it particularly concerning for enterprise environments where iTunes is commonly deployed for media management and device synchronization. Additionally, the vulnerability's relationship to the broader WebKit ecosystem means that similar issues may exist across other applications utilizing the same rendering engine, creating a wider attack surface than initially apparent.
Organizations should implement immediate mitigations including updating to iTunes version 10.2 or later, which contains patches addressing the WebKit memory corruption issues. Network-level protections such as SSL inspection and traffic monitoring can help detect anomalous behavior patterns associated with exploitation attempts. Security teams should also consider restricting iTunes Store access through firewall rules or proxy configurations until proper updates are deployed. The vulnerability aligns with ATT&CK technique T1059.007, which covers the use of scripting languages for execution, and T1211, which involves exploitation of remote services. System administrators should monitor for unusual iTunes application behavior, including unexpected crashes or memory usage patterns, as early indicators of potential exploitation attempts. The patch released by Apple in version 10.2 specifically addresses the buffer overflow conditions within the WebKit engine, implementing proper input validation and memory management practices that prevent the exploitation vectors described in this vulnerability.