CVE-2012-0612 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-2012-0612 represents a critical memory corruption flaw within WebKit engine components that power Apple's iOS operating system and iTunes media software. This vulnerability specifically affects versions of Apple iOS prior to 5.1 and iTunes versions prior to 10.6, creating a significant attack surface for malicious actors who could exploit this weakness through crafted web content. The flaw resides in how WebKit processes certain web page elements, leading to unpredictable memory behavior that can be leveraged for remote code execution or denial of service attacks. The vulnerability operates through a sophisticated exploitation vector that requires no user interaction beyond visiting a malicious website, making it particularly dangerous in phishing campaigns and drive-by download scenarios.
The technical implementation of this vulnerability stems from improper memory management within WebKit's rendering engine, where buffer overflows or use-after-free conditions can occur when processing malformed web content. Attackers can craft specific web pages containing malicious JavaScript or HTML elements that trigger the memory corruption when the browser attempts to render them. This type of vulnerability aligns with CWE-125, which describes out-of-bounds read conditions, and CWE-476, which covers null pointer dereferences. The flaw demonstrates characteristics consistent with memory safety issues that have historically been exploited in browser-based attacks, where attackers leverage the complex interaction between web rendering engines and memory management systems to achieve arbitrary code execution. The vulnerability's classification as a remote code execution flaw places it within the ATT&CK framework under T1059.007 for command and scripting interpreter, specifically web shell execution, and T1211 for exploitation for defense evasion.
The operational impact of this vulnerability extends beyond simple application crashes, as it provides attackers with the capability to execute arbitrary code on affected systems with the privileges of the compromised application. This means that successful exploitation could lead to complete system compromise, data theft, or further lateral movement within network environments. The vulnerability affects both mobile and desktop platforms, creating a unified attack vector across Apple's ecosystem, which makes it particularly concerning for enterprise environments where Apple devices are prevalent. Organizations using affected versions of iOS or iTunes face significant risk as attackers could leverage this vulnerability to gain unauthorized access to devices, potentially accessing sensitive corporate data stored on mobile platforms. The memory corruption nature of the flaw means that the consequences are not limited to immediate application crashes but can result in system instability and persistent security breaches.
Mitigation strategies for CVE-2012-0612 focus primarily on immediate patching and system updates to the affected Apple software versions. Organizations should prioritize updating all iOS devices to version 5.1 or later and iTunes installations to version 10.6 or higher to eliminate the vulnerability. Network administrators should implement web filtering solutions to block access to known malicious domains and consider deploying intrusion detection systems that can identify exploitation attempts. Additional protective measures include disabling JavaScript in web browsers when possible, implementing sandboxing mechanisms, and conducting regular security assessments of mobile device management configurations. Security teams should also monitor for indicators of compromise related to this vulnerability, including unusual network traffic patterns or system behavior that might suggest exploitation attempts. The vulnerability underscores the importance of maintaining up-to-date software patches and demonstrates how browser-based vulnerabilities can create persistent security risks that require comprehensive remediation strategies across multiple platforms and device types.