CVE-2011-0147 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-2011-0147 represents a critical security flaw in Apple iTunes version 10.1 and earlier on Windows platforms that enables remote attackers to compromise system integrity through man-in-the-middle attack vectors. This vulnerability specifically targets the WebKit rendering engine component that iTunes employs for displaying content from the iTunes Store, creating a pathway for malicious actors to execute arbitrary code or induce system crashes through memory corruption issues. The flaw operates within the context of network communications where iTunes establishes connections to Apple's servers for store browsing functionality, making it particularly dangerous for users who frequently access the iTunes Store or download content through the application.
The technical implementation of this vulnerability stems from improper handling of network requests and data parsing within the WebKit engine's implementation within iTunes. When users navigate the iTunes Store or interact with web-based content within the application, the WebKit component processes incoming data streams that may contain malicious payloads. The vulnerability manifests as memory corruption issues that occur during the parsing of web content, potentially leading to buffer overflows or other memory management errors that can be exploited to execute arbitrary code with the privileges of the iTunes process. This type of vulnerability falls under the category of memory corruption flaws, which are commonly classified as CWE-122 (Heap-based Buffer Overflow) or CWE-787 (Out-of-bounds Write) depending on the specific exploitation vector.
The operational impact of CVE-2011-0147 extends beyond simple denial of service scenarios to encompass full system compromise capabilities for attackers. When successfully exploited, this vulnerability allows adversaries to execute malicious code on vulnerable systems, potentially leading to complete system takeover or data exfiltration. The memory corruption aspects of the flaw can cause unpredictable application behavior including crashes, hangs, or more severe system instability that may be leveraged to escalate privileges or install persistent malware. Additionally, the vulnerability's nature as a man-in-the-middle attack vector suggests that attackers could potentially intercept and modify network traffic between iTunes and Apple's servers, creating opportunities for credential theft, content manipulation, or redirection to malicious sites.
This vulnerability aligns with ATT&CK framework techniques including T1059.007 (Command and Scripting Interpreter: Visual Basic) and T1071.004 (Application Layer Protocol: DNS) when considering how attackers might leverage the compromised iTunes application to establish command execution capabilities or manipulate network communications. The flaw's exploitation requires network access and typically involves intercepting iTunes Store traffic, making it particularly relevant to network security monitoring and traffic analysis. Organizations should consider implementing network segmentation, traffic filtering, and monitoring for unusual iTunes behavior as part of their defensive strategies. The vulnerability's resolution through Apple's patch release in iTunes 10.2 demonstrates the importance of timely security updates and the potential for third-party applications to introduce significant security risks when they incorporate complex web rendering engines like WebKit.
Mitigation strategies for CVE-2011-0147 should prioritize immediate patch deployment as the primary defense mechanism, given that Apple released iTunes 10.2 specifically to address this vulnerability. Network administrators should implement security controls to monitor iTunes network traffic patterns and detect potential exploitation attempts, particularly focusing on unusual outbound connections or data transfers from the iTunes application. Additionally, users should be educated about the risks of accessing untrusted networks or using public Wi-Fi for iTunes Store browsing, as these scenarios increase the likelihood of man-in-the-middle attacks. System hardening measures including application whitelisting, restricted user privileges for iTunes execution, and regular security audits of installed applications can provide additional layers of protection. The vulnerability serves as a reminder of the importance of secure coding practices in web rendering components and the potential consequences when memory safety mechanisms fail in widely deployed applications.