CVE-2012-0606 in iOS
Summary
by MITRE
WebKit, as used in Apple iOS before 5.1 and iTunes before 10.6, 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-2012-03-07-1 and APPLE-SA-2012-03-07-2.
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Analysis
by VulDB Data Team • 01/11/2025
The vulnerability identified as CVE-2012-0606 represents a critical memory corruption flaw within WebKit, the rendering engine that powers Apple's Safari browser and iOS web applications. This vulnerability specifically affected Apple iOS versions prior to 5.1 and iTunes versions before 10.6, creating a significant attack surface that malicious actors could exploit to gain unauthorized access to affected systems. The flaw resides in how WebKit processes certain web content, particularly when handling crafted web pages that contain malformed data structures or improper memory management operations. This type of vulnerability falls under the category of memory safety issues, which are commonly classified as CWE-125 (Out-of-bounds Read) or CWE-787 (Out-of-bounds Write) depending on the specific manifestation of the memory corruption.
The technical exploitation of this vulnerability occurs when a remote attacker crafts a malicious website containing specially designed HTML, JavaScript, or multimedia content that triggers improper memory handling within the WebKit engine. When a user visits such a crafted website, the browser's rendering engine attempts to process the malformed content, leading to memory corruption that can result in arbitrary code execution or application crashes. The vulnerability's impact extends beyond simple denial of service, as successful exploitation could allow attackers to execute malicious code with the privileges of the affected application, potentially leading to complete system compromise. This exploitation technique aligns with ATT&CK framework tactic T1059 (Command and Scripting Interpreter) and technique T1074 (Data Staged) as attackers leverage web-based delivery mechanisms to establish initial footholds.
The operational impact of CVE-2012-0606 was substantial across Apple's ecosystem, affecting millions of iOS devices and desktop users who relied on iTunes for media management and synchronization. The vulnerability's remote nature meant that users could be compromised simply by visiting malicious websites, making it particularly dangerous in phishing campaigns or compromised advertising networks. Organizations running affected versions of iTunes were exposed to potential data breaches, as the vulnerability could be exploited to gain unauthorized access to user data stored on local systems. The memory corruption aspect of this flaw made detection particularly challenging since the application might crash unpredictably, and the arbitrary code execution capability meant that attackers could install backdoors, steal sensitive information, or perform other malicious activities. Security professionals noted that this vulnerability was particularly concerning because it represented a different class of flaws compared to other WebKit vulnerabilities documented in Apple Security Advisories, suggesting a more fundamental issue in the engine's memory management subsystem.
Mitigation strategies for CVE-2012-0606 centered on immediate patch deployment through Apple's security updates, with iOS 5.1 and iTunes 10.6 containing the necessary fixes. System administrators and users were advised to disable JavaScript or implement content filtering solutions as temporary workarounds while awaiting official patches. The vulnerability highlighted the importance of keeping software updated and implementing robust security monitoring to detect anomalous behavior patterns that might indicate exploitation attempts. Security researchers emphasized that this vulnerability demonstrated the critical need for memory safety testing and code review processes in browser engine development, as similar flaws in other web rendering engines have led to widespread exploitation in the years following this discovery. Organizations were encouraged to implement network-based intrusion detection systems that could identify traffic patterns consistent with exploitation attempts and to maintain comprehensive backup and recovery procedures to address potential compromise scenarios.