CVE-2011-0138 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-2011-0138 represents a critical security flaw in WebKit engine implementation within Apple iTunes version 10.1 and earlier on Windows platforms. This issue specifically affects the iTunes Store browsing functionality and demonstrates the inherent risks associated with web rendering components in media applications. The vulnerability stems from improper handling of web content within the iTunes environment, creating a pathway for malicious actors to exploit the system through man-in-the-middle attacks that can result in arbitrary code execution or system instability.
The technical exploitation of this vulnerability occurs through memory corruption issues that arise during iTunes Store browsing operations. When users navigate the iTunes Store interface, the WebKit rendering engine processes various web content elements including HTML, JavaScript, and multimedia components. The flaw manifests in how the engine handles certain malformed or malicious web responses during network communication, leading to buffer overflows or memory corruption that can be leveraged by attackers positioned between the user and the iTunes Store servers. This vulnerability operates at the intersection of web browser security and application-level memory management, making it particularly dangerous as it can be triggered through normal user interactions with the iTunes interface.
The operational impact of CVE-2011-0138 extends beyond simple application crashes to potentially enable full system compromise. Attackers can exploit this vulnerability to execute arbitrary code with the privileges of the iTunes process, which typically runs with elevated permissions on Windows systems. This could result in complete system compromise, data theft, or installation of persistent malware. The denial of service aspect of this vulnerability can also be leveraged to disrupt legitimate users' access to iTunes Store services, creating both availability and confidentiality risks. The vulnerability's classification aligns with CWE-121, heap-based buffer overflow, and CWE-125, out-of-bounds read, demonstrating the fundamental memory safety issues that plague web rendering engines when processing untrusted network data.
Mitigation strategies for this vulnerability require immediate patching of affected iTunes versions, with Apple releasing iTunes 10.2 to address the specific memory corruption issues. System administrators should implement network monitoring to detect unusual traffic patterns that might indicate exploitation attempts, particularly focusing on SSL/TLS handshake anomalies and unexpected data flows to iTunes Store endpoints. The vulnerability's characteristics align with ATT&CK technique T1059.007 for Windows Command Shell execution and T1071.004 for application layer protocol usage, indicating that exploitation would likely involve command execution and network protocol manipulation. Organizations should also consider implementing network segmentation to limit iTunes Store access and deploy intrusion detection systems to monitor for exploitation signatures. Given the nature of man-in-the-middle attacks, organizations should also review their network security policies and ensure proper certificate validation mechanisms are in place to prevent unauthorized interception of iTunes Store communications.