CVE-2012-3658 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
The vulnerability identified as CVE-2012-3658 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 manifests when iTunes processes web content through its embedded WebKit browser engine, which is designed to handle web-based interfaces and content within the media player application.
The technical nature of this vulnerability stems from improper memory handling within WebKit's rendering engine, where insufficient input validation and memory management controls allow attackers to manipulate memory structures through carefully constructed web pages. This memory corruption occurs during the parsing and rendering of web content, specifically when iTunes encounters malformed or malicious HTML, JavaScript, or other web elements that trigger buffer overflows or use-after-free conditions within the WebKit engine's memory management subsystem. The vulnerability operates at the intersection of browser engine security and application sandboxing, where the boundaries between safe web content processing and potentially malicious code execution become compromised.
The operational impact of CVE-2012-3658 extends beyond simple application crashes to enable full remote code execution capabilities, allowing attackers to execute arbitrary commands on affected systems with the privileges of the iTunes process. This represents a significant escalation from typical denial-of-service conditions, as attackers can leverage the vulnerability to install malware, steal user data, or establish persistent access to compromised systems. The vulnerability is particularly dangerous because it affects a widely used media application that often runs with elevated privileges and has access to user files, making it an attractive target for attackers seeking to compromise user systems. The attack vector requires only that a user visits a malicious website while iTunes is running, making it particularly effective for phishing campaigns and drive-by download attacks.
Mitigation strategies for this vulnerability primarily focus on immediate software updates to iTunes version 10.7 or later, which contain patches addressing the memory corruption issues within WebKit. System administrators should also implement network-level protections such as web content filtering and sandboxing measures to limit exposure, while users should avoid visiting untrusted websites when iTunes is active. The vulnerability aligns with CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write conditions, both of which are common indicators of memory corruption vulnerabilities. From an adversarial perspective, this vulnerability would likely be categorized under ATT&CK technique T1059, specifically command and scripting interpreter, as attackers could leverage the remote code execution capability to deploy additional payloads or establish backdoors. Organizations should also consider implementing endpoint detection and response solutions to monitor for suspicious process behaviors that might indicate exploitation attempts, while maintaining regular security updates to prevent similar vulnerabilities from being exploited in other software components.