CVE-2012-0588 in iOS
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in WebKit, as used in Apple iOS before 5.1, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2012-0586, CVE-2012-0587, and CVE-2012-0589.
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Analysis
by VulDB Data Team • 03/21/2021
The vulnerability identified as CVE-2012-0588 represents a critical cross-site scripting flaw within WebKit rendering engine that was prevalent in Apple iOS versions prior to 5.1. This vulnerability specifically affects the browser component of iOS devices and exposes users to potential remote code execution through malicious web content. The flaw resides in how WebKit processes and renders web page elements, creating an avenue for attackers to inject malicious scripts that can execute within the context of the user's browsing session. Unlike other related vulnerabilities such as CVE-2012-0586, CVE-2012-0587, and CVE-2012-0589, this particular issue involves distinct attack vectors that exploit different aspects of the WebKit rendering engine's input validation mechanisms. The vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental weakness in web application security where user-provided data is not properly sanitized before being rendered in web pages.
The technical implementation of this XSS vulnerability stems from inadequate input sanitization within WebKit's HTML parser and rendering components. Attackers can craft malicious web pages containing specially formatted scripts or HTML elements that bypass the browser's security controls when processed by the WebKit engine. These malicious payloads can be delivered through various means including compromised websites, malicious email attachments that open web pages, or even through social engineering tactics that trick users into visiting malicious sites. The vulnerability is particularly dangerous because it operates at the browser level, meaning that successful exploitation can potentially access sensitive user data, hijack sessions, or perform actions on behalf of the authenticated user without their knowledge. The flaw exists in the way the browser engine handles certain HTML attributes, JavaScript execution contexts, or DOM manipulation operations that should normally be restricted or sanitized before rendering.
The operational impact of CVE-2012-0588 extends beyond simple script injection, as it provides attackers with the capability to perform sophisticated attacks against iOS users. Users of affected iOS versions are at risk of having their personal information compromised, including login credentials, financial data, and private communications. The vulnerability can be exploited to create persistent threats that maintain access to user sessions even after initial exploitation, enabling long-term surveillance and data theft operations. Mobile users are particularly vulnerable since iOS devices often contain sensitive personal and corporate data, making them attractive targets for attackers. The attack surface is broad as any web content that passes through the WebKit engine can potentially be exploited, including emails with embedded web content, web applications, and even web-based services that users interact with regularly. This vulnerability directly maps to several ATT&CK techniques including T1566 for phishing attacks and T1059 for command and scripting interpreter usage, as attackers can leverage the XSS capability to establish persistent access.
Mitigation strategies for CVE-2012-0588 primarily focus on updating affected iOS versions to 5.1 or later, which contain patches addressing the underlying WebKit rendering engine flaws. Organizations should implement comprehensive mobile device management policies that enforce automatic updates and maintain current security patches across all iOS devices. Network-level defenses such as web application firewalls and content filtering systems can provide additional protection layers, though these solutions are not foolproof against sophisticated attacks. Users should be educated about the risks of visiting untrusted websites and should avoid clicking on suspicious links or downloading content from unknown sources. Security monitoring should include detection of unusual web browsing patterns that might indicate exploitation attempts, and incident response procedures should be established to quickly address any confirmed exploitation. The vulnerability highlights the importance of regular security updates and the need for organizations to maintain comprehensive patch management processes for mobile operating systems. Organizations should also consider implementing mobile threat defense solutions that can detect and prevent exploitation attempts targeting known vulnerabilities like CVE-2012-0588.