CVE-2011-0135 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-2011-0135 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 manifests as a man-in-the-middle attack vector that enables remote threat actors to compromise the target system through iTunes Store browsing activities. The vulnerability stems from improper handling of web content within the iTunes application's web browsing functionality, creating a pathway for attackers to inject malicious code or manipulate memory structures. The flaw is particularly concerning because it affects a widely used media management application that users trust for legitimate software updates and digital content purchases. The vulnerability operates by exploiting weaknesses in how iTunes processes web requests and renders content from the iTunes Store, allowing attackers to manipulate the application's memory management during normal browsing operations.
The technical implementation of this vulnerability involves memory corruption issues that occur when iTunes processes web content from the iTunes Store. Attackers can leverage this flaw by intercepting network traffic between the iTunes application and Apple's servers, then injecting malicious content that triggers memory corruption during the rendering process. This memory corruption leads to unpredictable application behavior including crashes, application instability, and potentially arbitrary code execution. The vulnerability is classified under CWE-119 as a weakness related to insufficient control of a resource's memory, specifically manifesting as memory corruption during web content processing. The flaw demonstrates poor input validation and memory management practices within the WebKit engine implementation, where untrusted web content is not properly sanitized before being processed by the application's rendering components.
From an operational perspective, this vulnerability creates significant risks for users who regularly access the iTunes Store for music, video, and software purchases. The man-in-the-middle attack vector means that attackers can exploit this vulnerability in public Wi-Fi networks, corporate networks, or any environment where network traffic is not properly secured. Successful exploitation can result in complete application compromise, allowing attackers to execute arbitrary code with the privileges of the iTunes process. This could lead to system-wide compromise if the iTunes application has elevated privileges or if the attacker can leverage the initial compromise to escalate privileges. The vulnerability also poses a denial of service risk, where attackers can cause repeated application crashes, disrupting legitimate user activities and potentially creating persistent availability issues for the iTunes application.
The impact of this vulnerability extends beyond immediate exploitation as it represents a fundamental flaw in how Apple's iTunes application handles web-based content in a Windows environment. The fact that this vulnerability is separate from other issues documented in APPLE-SA-2011-03-02-1 indicates a distinct attack surface that requires specific mitigation strategies. Organizations and users should consider this vulnerability as part of a broader threat landscape where web-based attacks are increasingly sophisticated and targeted. The vulnerability's classification aligns with ATT&CK technique T1190 which involves exploiting weaknesses in web applications to execute malicious code or cause service disruption. The most effective mitigations include immediate patching of iTunes to version 10.2 or later, implementation of network security controls such as SSL inspection for monitoring traffic, and user education regarding secure browsing practices. Additionally, network administrators should consider implementing firewalls or network segmentation to limit access to iTunes Store services and reduce the attack surface for potential exploitation.