CVE-2014-4412 in iOS
Summary
by MITRE
WebKit, as used in Apple iOS before 8 and Apple TV before 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-2014-09-17-1 and APPLE-SA-2014-09-17-2.
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Analysis
by VulDB Data Team • 02/20/2022
The vulnerability identified as CVE-2014-4412 represents a critical memory corruption flaw within WebKit engine components that power Apple's iOS and Apple TV operating systems. This vulnerability exists in versions prior to iOS 8 and Apple TV software version 7, creating a persistent security risk that affects millions of devices worldwide. The flaw manifests through maliciously crafted web content that, when rendered by the affected WebKit implementation, triggers unpredictable behavior leading to system compromise or service disruption.
The technical nature of this vulnerability stems from improper memory management within WebKit's rendering engine, specifically in how it handles certain web page elements or JavaScript constructs. Attackers can exploit this weakness by hosting malicious web content that, when accessed through Safari or embedded web views in Apple applications, causes memory corruption. This memory corruption can result in arbitrary code execution privileges for attackers or lead to application crashes that constitute a denial of service condition. The vulnerability operates outside the scope of other WebKit-related CVEs from the same period, indicating a distinct code path or implementation flaw within the rendering engine's memory handling mechanisms.
From an operational perspective, this vulnerability presents significant risk to Apple device users as it can be exploited through standard web browsing activities without requiring any special privileges or user interaction beyond visiting a compromised website. The attack vector is particularly dangerous because it leverages the web browser as an attack surface, making it accessible to threat actors who can distribute malicious content through various means including compromised websites, phishing campaigns, or malicious advertisements. The potential for remote code execution means that attackers could gain full control over affected devices, potentially accessing sensitive user data, installing malware, or using the compromised devices as launch points for further attacks against networks or other systems.
The impact of this vulnerability extends beyond individual device compromise to encompass broader security implications for Apple's ecosystem and enterprise users who rely on iOS devices for business operations. Organizations using Apple devices for corporate purposes face increased risk of data breaches, as this vulnerability could enable attackers to access corporate networks through compromised endpoints. The vulnerability's persistence across multiple device types including smartphones, tablets, and set-top boxes creates a wide attack surface that threat actors can leverage. Security professionals should note that this vulnerability aligns with common attack patterns documented in the ATT&CK framework under initial access and execution phases, particularly through web-based attack vectors and exploitation of browser vulnerabilities.
Mitigation strategies for CVE-2014-4412 require immediate software updates to the affected Apple operating systems, as the primary fix involves applying the security patches released by Apple in their respective software updates. Organizations should implement network monitoring to detect potential exploitation attempts and establish secure browsing policies that limit exposure to untrusted web content. Additional protective measures include deploying web application firewalls, implementing browser security extensions, and conducting regular security assessments of web applications and services that might be accessed through affected devices. The vulnerability also highlights the importance of maintaining current security patches and demonstrates the critical nature of timely software updates in preventing exploitation of memory corruption vulnerabilities that can lead to full system compromise.