CVE-2011-3244 in iTunes
Summary
by MITRE
WebKit, as used in Apple iTunes before 10.5, 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-2011-10-11-1.
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Analysis
by VulDB Data Team • 01/19/2025
The vulnerability identified as CVE-2011-3244 represents a critical security flaw in WebKit engine implementation within Apple iTunes versions prior to 10.5. This issue specifically affects the iTunes Store browsing functionality and demonstrates how web rendering components can be exploited to compromise entire applications. The vulnerability classifies under CWE-119 which encompasses memory corruption issues, making it particularly dangerous as it can lead to arbitrary code execution or system instability. The flaw manifests when iTunes processes content from the iTunes Store, creating an attack surface that adversaries can exploit through man-in-the-middle positioning.
The technical implementation of this vulnerability stems from improper handling of web content within the WebKit rendering engine used by iTunes. When users browse the iTunes Store, the application fetches and processes various web resources including HTML, CSS, and JavaScript elements. The flaw occurs during the parsing and execution of these resources, where insufficient input validation and memory management leads to buffer overflows or heap corruption. This memory corruption can be leveraged by attackers positioned between the user and iTunes Store servers to inject malicious code that executes with the privileges of the iTunes application. The vulnerability is distinct from other issues documented in APPLE-SA-2011-10-11-1, indicating it operates through different attack vectors or code paths.
From an operational perspective, this vulnerability creates significant risks for users who regularly access iTunes Store content. The man-in-the-middle attack scenario implies that attackers need only intercept network traffic to exploit the flaw, making it particularly dangerous in public Wi-Fi environments or compromised networks. Successful exploitation can result in complete system compromise as the malicious code executes within the iTunes application context, potentially leading to data theft, system control, or further network infiltration. The denial of service aspect means that even unsuccessful attacks can cause application crashes, disrupting legitimate user activities and potentially providing attackers with information about system vulnerabilities through crash patterns.
The mitigation strategies for CVE-2011-3244 primarily focus on updating to Apple iTunes version 10.5 or later, which contains the necessary patches to address the WebKit memory corruption issues. Organizations should implement immediate patch management protocols to ensure all affected systems receive updates promptly. Network administrators should also consider implementing additional security controls such as SSL certificate validation, traffic monitoring, and intrusion detection systems to detect potential exploitation attempts. The vulnerability aligns with ATT&CK technique T1059 which involves executing malicious code through application interfaces, and T1190 which covers exploitation of remote services. Users should be educated about the risks of connecting to untrusted networks and the importance of keeping software updated. Security teams should monitor for indicators of compromise related to iTunes Store browsing activities and implement network segmentation to limit potential lateral movement if exploitation occurs. The vulnerability underscores the importance of secure coding practices in web rendering components and the necessity of regular security assessments for third-party libraries and frameworks used in applications.