CVE-2008-1002 in Safari
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Apple Safari before 3.1 allows remote attackers to inject arbitrary web script or HTML via a crafted javascript: URL.
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Analysis
by VulDB Data Team • 11/28/2024
The vulnerability identified as CVE-2008-1002 represents a critical cross-site scripting flaw in Apple Safari web browser versions prior to 3.1. This security weakness stems from inadequate input validation and sanitization mechanisms within the browser's handling of javascript: URLs. The flaw specifically affects how Safari processes URLs that begin with the javascript: protocol, which can be exploited by malicious actors to inject arbitrary web scripts or HTML content directly into web pages. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is a fundamental web application security weakness that allows attackers to execute scripts in the context of other users' browsers.
The technical implementation of this vulnerability occurs when Safari fails to properly sanitize or escape user-supplied input that contains javascript: URLs. When a user encounters a maliciously crafted URL containing javascript: protocol followed by malicious code, the browser does not adequately validate or neutralize the script content before rendering it. This allows attackers to craft deceptive URLs that appear legitimate but contain hidden malicious payloads. The vulnerability is particularly dangerous because it leverages the browser's own scripting capabilities against users, bypassing typical security restrictions that would normally prevent such code execution. Attackers can utilize this flaw to steal session cookies, perform unauthorized actions on behalf of users, or redirect victims to malicious websites.
The operational impact of CVE-2008-1002 extends beyond simple script injection, as it can enable sophisticated attack vectors that compromise user privacy and system integrity. Users browsing the web with vulnerable Safari versions become susceptible to various forms of malicious activity including session hijacking, data theft, and phishing attacks. The vulnerability is particularly concerning because it operates at the browser level rather than requiring exploitation of specific web applications, making it a broad threat that affects all websites visited through the vulnerable browser. Security researchers have noted that this type of vulnerability can be exploited through various delivery mechanisms including malicious links in emails, compromised websites, or social engineering campaigns that trick users into clicking on malicious URLs.
Mitigation strategies for this vulnerability primarily focus on immediate browser updates and user education. The most effective solution involves upgrading to Safari 3.1 or later versions where Apple implemented proper input validation for javascript: URLs. Organizations should maintain comprehensive patch management processes to ensure all browser installations remain current with security updates. Additional protective measures include implementing Content Security Policy headers on web applications, enabling browser security features such as XSS protection filters, and deploying web application firewalls that can detect and block suspicious javascript: URL patterns. From an ATT&CK framework perspective, this vulnerability aligns with techniques such as T1059.007 Command and Scripting Interpreter: JavaScript and T1566.001 Phishing: Spearphishing Attachment, as it enables attackers to execute malicious scripts and deliver phishing content through web-based attack vectors. Network administrators should also consider implementing URL filtering solutions that can identify and block suspicious javascript: protocol usage in network traffic.