CVE-2012-3607 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 • 04/22/2021
The vulnerability identified as CVE-2012-3607 represents a critical memory corruption flaw within WebKit engine components that were integrated into Apple iTunes version 10.6 and earlier. This vulnerability specifically affects the web rendering capabilities of iTunes when processing maliciously crafted web content, creating a pathway for remote code execution attacks that could potentially compromise the entire system. The flaw resides in how WebKit handles certain web page elements and memory management operations, making it particularly dangerous as it allows attackers to execute arbitrary code on vulnerable systems simply by visiting a compromised website.
This memory corruption vulnerability operates through a sophisticated attack vector that leverages buffer overflows or use-after-free conditions within the WebKit rendering engine's JavaScriptCore component. The attack requires minimal user interaction beyond visiting a malicious webpage, making it particularly effective for drive-by download scenarios. The vulnerability's classification as a remote code execution flaw aligns with CWE-119, which specifically addresses weaknesses in memory management and buffer handling. The flaw demonstrates characteristics consistent with advanced persistent threat techniques, as outlined in the MITRE ATT&CK framework under the T1059.007 sub-technique for scripting languages, where attackers exploit browser-based vulnerabilities to establish initial access points.
The operational impact of CVE-2012-3607 extends beyond simple application crashes, as it provides attackers with the capability to execute arbitrary code with the privileges of the iTunes process. This could potentially lead to full system compromise, especially when users have administrative privileges on their machines. The vulnerability affects not only the iTunes application itself but also creates risks for users who may be browsing the web while iTunes is running, as the WebKit engine is responsible for rendering web content within the application's interface. The memory corruption issues can manifest as unpredictable application behavior, system instability, and potential privilege escalation opportunities that make this vulnerability particularly concerning for enterprise environments where iTunes was commonly used for media management and synchronization.
Security professionals should implement immediate mitigations including updating to iTunes version 10.7 or later, which contains the necessary patches to address the memory corruption issues. Network administrators should consider implementing web filtering solutions to block access to known malicious domains that may exploit this vulnerability. The vulnerability also highlights the importance of keeping all browser components and web rendering engines updated, as similar flaws have been documented in other WebKit-based applications. Organizations should conduct comprehensive vulnerability assessments to identify any systems running vulnerable versions of iTunes and ensure proper patch management procedures are in place. Additional defensive measures include implementing application whitelisting policies, monitoring for unusual memory usage patterns, and maintaining updated intrusion detection systems that can identify exploitation attempts targeting this specific vulnerability class.