CVE-2011-2866 in iTunes
Summary
by MITRE
WebKit, as used in Apple iTunes before 10.6, 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-2012-03-07-1.
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Analysis
by VulDB Data Team • 03/21/2021
The vulnerability identified as CVE-2011-2866 represents a critical security flaw in Apple iTunes versions prior to 10.6, specifically within the WebKit rendering engine component that handles iTunes Store browsing functionality. This vulnerability exposes a significant attack surface that could be exploited by malicious actors positioned in man-in-the-middle scenarios, where they can intercept and manipulate network traffic between the user's device and Apple's iTunes Store servers. The flaw manifests through improper handling of certain web content during iTunes Store browsing operations, creating opportunities for remote code execution or denial of service conditions that could severely compromise user systems.
The technical nature of this vulnerability stems from memory corruption issues within WebKit's processing of web-based content when users navigate the iTunes Store interface. Attackers can leverage this weakness by positioning themselves between the user and Apple's servers to inject malicious content that triggers buffer overflows or other memory corruption conditions. When iTunes processes this manipulated content, the corrupted memory structures can lead to unpredictable application behavior including crashes, memory corruption, or potentially full code execution within the iTunes process context. This type of vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios that are common in web rendering engines.
The operational impact of CVE-2011-2866 extends beyond simple application instability, as it represents a serious threat to user security and system integrity. Successful exploitation could allow attackers to execute arbitrary code with the privileges of the iTunes process, potentially leading to complete system compromise. Users engaging with iTunes Store content would be at risk of having their devices infected with malware, having their personal data compromised, or experiencing complete system crashes that could result in data loss. The vulnerability's classification as a man-in-the-middle attack vector indicates that it requires network-level access rather than direct system compromise, making it particularly dangerous in public Wi-Fi environments or corporate networks where such interception is common.
Organizations and individuals should prioritize immediate remediation through updating to iTunes 10.6 or later versions that contain the necessary patches for this vulnerability. System administrators should implement network monitoring to detect potential exploitation attempts and consider network segmentation to limit exposure to man-in-the-middle attacks. The vulnerability's nature suggests that security controls should include regular software updates, network traffic inspection, and user education about avoiding untrusted networks when accessing iTunes Store functionality. This issue demonstrates the importance of keeping web rendering components updated and highlights the risks associated with outdated software in enterprise environments where iTunes was commonly used for media management and distribution. The vulnerability also underscores the necessity of implementing secure communication protocols and certificate validation mechanisms to prevent man-in-the-middle attacks that could exploit such rendering engine flaws.