CVE-2011-2814 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-2011-2814 represents a critical security flaw in Apple iTunes version 10.4 and earlier, specifically within the WebKit rendering engine component that handles iTunes Store browsing functionality. This vulnerability arises from insufficient input validation and memory management controls during the processing of web content within the iTunes application's integrated browser. The flaw manifests when users navigate the iTunes Store, particularly when encountering maliciously crafted web content that exploits improper handling of memory structures during content rendering. The vulnerability classifies under CWE-125, which describes out-of-bounds read conditions, and CWE-787, representing out-of-bounds write conditions, both of which are common in browser engine implementations where memory corruption can occur due to inadequate bounds checking mechanisms. The vulnerability operates through a man-in-the-middle attack vector, where an attacker positioned between the user and Apple's iTunes Store servers can inject malicious content that triggers the exploitable code path within the WebKit engine.
The technical exploitation of this vulnerability occurs when iTunes processes web content from the iTunes Store, particularly when encountering malformed or maliciously constructed HTML or JavaScript elements that cause the WebKit engine to access memory locations beyond allocated boundaries. This memory corruption can result in arbitrary code execution within the iTunes process context, potentially allowing attackers to gain control over the victim's system. The vulnerability also presents a denial of service risk, where the memory corruption can cause the iTunes application to crash or become unstable, effectively preventing legitimate users from accessing the iTunes Store functionality. The attack requires the victim to be browsing the iTunes Store within the vulnerable iTunes version, making it a client-side exploit that relies on social engineering or network interception techniques. The vulnerability demonstrates characteristics consistent with the attack pattern described in the MITRE ATT&CK framework under T1203, which involves exploiting weaknesses in software applications to execute malicious code or cause system instability.
The operational impact of CVE-2011-2814 extends beyond simple application instability, as the potential for arbitrary code execution represents a significant security risk to users of affected iTunes versions. Attackers could leverage this vulnerability to install malware, steal user credentials, or perform other malicious activities on compromised systems. The vulnerability affects users who regularly access the iTunes Store for music, video, or software purchases, making it particularly concerning for individuals who maintain their iTunes libraries through online browsing. Organizations using iTunes for software distribution or digital media management would also face potential security exposure, as the vulnerability could be exploited to compromise systems within enterprise environments. The vulnerability's classification as a memory corruption issue means that exploitation could lead to complete system compromise, especially if users run iTunes with elevated privileges or if the application is used in conjunction with other vulnerable software components. The vulnerability's discovery and subsequent patching in iTunes version 10.5 demonstrates the importance of timely security updates in preventing exploitation of browser engine vulnerabilities, particularly those that can be triggered through normal user browsing activities within trusted applications.
Mitigation strategies for CVE-2011-2814 primarily focus on updating to the patched version of iTunes, specifically version 10.5 or later, which addresses the memory corruption issues in the WebKit component. Users should also implement network security measures such as SSL inspection and monitoring for suspicious traffic patterns that might indicate man-in-the-middle attacks targeting iTunes Store browsing. Security administrators should consider implementing application whitelisting policies that restrict iTunes usage to trusted environments and monitor for unusual application behavior or crashes that might indicate exploitation attempts. The vulnerability highlights the importance of maintaining current software versions and implementing layered security approaches that include network monitoring, application security controls, and user education about the risks of browsing untrusted web content within applications that integrate web browsing capabilities. Organizations should also consider the broader implications of WebKit-based vulnerabilities, as similar issues have been identified in other browser engines and applications, making it essential to maintain comprehensive software update policies and vulnerability management procedures.