CVE-2011-3235 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-2011-3235 represents a critical security flaw within Apple iTunes version 10.4 and earlier, specifically affecting the WebKit rendering engine component that powers iTunes Store browsing functionality. This vulnerability operates as a man-in-the-middle attack vector that could potentially allow remote attackers to execute arbitrary code or cause denial of service conditions through memory corruption issues. The flaw is particularly concerning because it leverages the trust relationship between iTunes and Apple's iTunes Store infrastructure, making it difficult for users to detect malicious activity. The vulnerability stems from improper handling of network requests and data processing within the WebKit engine when interacting with iTunes Store content, creating opportunities for attackers to inject malicious payloads or manipulate the application's memory state.
The technical implementation of this vulnerability involves memory corruption issues that occur during the processing of web content retrieved from iTunes Store servers. When iTunes attempts to display or process content from the iTunes Store, the WebKit engine fails to properly validate or sanitize incoming data, leading to potential buffer overflows or memory corruption conditions. These memory corruption issues can manifest as application crashes or more severe conditions where attackers can potentially execute arbitrary code within the iTunes process context. The vulnerability is classified under CWE-125 as an out-of-bounds read condition, which can lead to memory corruption and unpredictable application behavior. The attack requires an attacker to position themselves between the user and the iTunes Store servers, intercepting and modifying network traffic to exploit the memory handling flaws.
The operational impact of CVE-2011-3235 extends beyond simple application instability to potentially enable full system compromise through remote code execution capabilities. When exploited, this vulnerability could allow attackers to gain arbitrary code execution privileges within the iTunes application, potentially leading to complete system compromise depending on the user's privilege level and system configuration. The vulnerability affects users who regularly browse the iTunes Store or download content through iTunes, making it particularly dangerous for widespread exploitation. The memory corruption aspects of this vulnerability make it particularly challenging to detect and defend against, as the application behavior becomes unpredictable and may not immediately reveal the presence of exploitation attempts. This vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as attackers could potentially use the arbitrary code execution to deploy additional malicious tools or establish persistent access.
Mitigation strategies for this vulnerability primarily focus on immediate software updates and network security measures. Apple addressed this issue through the release of iTunes 10.5, which included patches to the WebKit engine that properly handle network data validation and memory allocation. Users should immediately upgrade to iTunes 10.5 or later versions to eliminate exposure to this vulnerability. Network administrators should implement additional security controls including traffic inspection, SSL certificate validation, and monitoring for suspicious network activity that might indicate man-in-the-middle attacks. The vulnerability demonstrates the importance of proper input validation and memory management in web rendering engines, highlighting the need for comprehensive security testing of third-party components integrated into applications. Organizations should also consider implementing network segmentation and access controls to limit the potential impact of successful exploitation attempts. The vulnerability serves as a reminder of the critical security considerations when integrating web technologies into desktop applications, particularly those with extensive network connectivity requirements and user interaction capabilities.