CVE-2012-0586 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-2012-0587, CVE-2012-0588, and CVE-2012-0589.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 11/30/2021
The CVE-2012-0586 vulnerability represents a critical cross-site scripting flaw within WebKit's rendering engine that was present in Apple iOS versions prior to 5.1. This vulnerability falls under the broader category of web application security weaknesses that can compromise user sessions and data integrity. The flaw specifically affects the manner in which WebKit processes and renders web content, creating opportunities for malicious actors to execute unauthorized code within the context of a user's browser session. The vulnerability's classification aligns with CWE-79, which addresses cross-site scripting attacks that occur when untrusted data is improperly incorporated into web pages without proper validation or sanitization.
The technical implementation of this vulnerability stems from insufficient input validation mechanisms within WebKit's HTML parsing and rendering components. Attackers could exploit this weakness by crafting malicious web pages containing specially formatted scripts or HTML elements that would be executed when users viewed these pages through affected iOS browsers. The unspecified vectors mentioned in the description suggest that the vulnerability could be triggered through various attack surfaces including but not limited to form inputs, URL parameters, or dynamically generated content. This broad attack surface increases the exploitability of the vulnerability across different web application contexts.
The operational impact of CVE-2012-0586 extends beyond simple script execution, as it enables attackers to perform session hijacking, data theft, and user interface manipulation. Mobile users running affected iOS versions were particularly vulnerable since their browsing sessions could be compromised without their knowledge. The vulnerability's presence in the core WebKit engine meant that it affected all web applications and services accessible through Safari and other WebKit-based applications on the device. This created a widespread risk across numerous web services and applications that relied on iOS users for access, potentially allowing attackers to harvest sensitive information including cookies, session tokens, and personal data.
Mitigation strategies for this vulnerability required immediate system updates to iOS 5.1 or later versions where Apple had implemented patches addressing the WebKit rendering engine flaws. Organizations should have enforced mandatory update policies for mobile devices and implemented additional security measures such as content security policies and input sanitization techniques. The vulnerability's exploitation aligns with ATT&CK technique T1059 which covers command and scripting interpreter usage, and T1566 which addresses credential access through social engineering. Security professionals should have monitored for indicators of compromise related to suspicious web traffic patterns and implemented network-based intrusion detection systems to identify potential exploitation attempts. The remediation process highlighted the importance of timely patch management and the need for organizations to maintain awareness of vulnerabilities affecting mobile operating systems that their users might be exposed to.