CVE-2012-3672 in iOS
Summary
by MITRE
WebKit, as used in Apple iTunes before 10.7, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2012-09-12-1.
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Analysis
by VulDB Data Team • 12/30/2024
CVE-2012-3672 represents a critical memory corruption vulnerability within WebKit engine that was embedded in Apple iTunes version 10.6 and earlier. This vulnerability falls under the CWE-125 vulnerability type, which specifically addresses out-of-bounds read errors that can lead to memory corruption and arbitrary code execution. The flaw exists in how WebKit processes certain web content, creating a pathway for remote attackers to craft malicious websites that can exploit the memory management issues within the iTunes application. The vulnerability is particularly concerning because it leverages the web browsing capabilities of iTunes, which was commonly used to access web content, making it a vector for widespread exploitation.
The technical implementation of this vulnerability involves improper handling of memory allocations when processing crafted web content within the WebKit rendering engine. Attackers could construct malicious web pages that, when viewed through iTunes' integrated web browser, would trigger buffer overflows or memory corruption issues. These memory corruption conditions typically occur when the application attempts to access memory locations beyond the allocated bounds, leading to unpredictable behavior including application crashes or potentially allowing attackers to execute arbitrary code with the privileges of the iTunes process. The vulnerability is classified as a remote code execution flaw because it does not require local system access or user interaction beyond visiting a malicious website.
The operational impact of CVE-2012-3672 extends beyond simple denial of service scenarios to include potential system compromise. When exploited successfully, this vulnerability could allow attackers to execute malicious code on vulnerable systems, potentially leading to full system compromise or data exfiltration. The vulnerability affects not only individual users but also enterprise environments where iTunes was commonly deployed for media management and synchronization purposes. The fact that this vulnerability was present in iTunes versions prior to 10.7 meant that a significant user base was potentially exposed, as iTunes was widely distributed and used across various operating systems including macOS and Windows platforms. The attack surface was particularly broad given that iTunes was often used as a web browser for accessing online content, making it an attractive target for threat actors.
Mitigation strategies for CVE-2012-3672 primarily focus on immediate software updates and system hardening measures. Apple addressed this vulnerability through the release of iTunes 10.7, which included patches to correct the memory handling issues within WebKit. Organizations should prioritize immediate deployment of the patched version and implement additional security controls such as network segmentation to limit exposure. The vulnerability demonstrates the importance of keeping web browsing components updated, as it aligns with ATT&CK technique T1190 for Exploit Public-Facing Application, where attackers target vulnerabilities in commonly used applications. Security professionals should also consider implementing web filtering solutions and monitoring for suspicious network traffic patterns that might indicate exploitation attempts, as the vulnerability could be leveraged in targeted attacks against organizations with outdated iTunes installations.