CVE-2008-1001 in Safari
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Apple Safari before 3.1, when running on Windows XP or Vista, allows remote attackers to inject arbitrary web script or HTML via a crafted URL that is not properly handled in the error page.
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Analysis
by VulDB Data Team • 08/07/2019
This cross-site scripting vulnerability exists in Apple Safari versions prior to 3.1 when operating on windows xp or vista operating systems. The flaw manifests in the browser's handling of error pages where crafted urls containing malicious javascript code are not properly sanitized or escaped before being rendered to users. This allows remote attackers to execute arbitrary web scripts or html code within the context of the victim's browser session, effectively bypassing the browser's security model and potentially compromising user data.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding within Safari's error page rendering mechanism. When a user navigates to a maliciously crafted url, the browser generates an error page that displays the url content without proper sanitization. This creates an environment where attacker-controlled input can be interpreted as executable code rather than mere text. The vulnerability specifically affects the windows versions of safari, suggesting that the implementation differences between operating systems create distinct attack surfaces.
From an operational perspective, this vulnerability presents significant risk to users who browse the internet with affected safari versions. Attackers can craft urls that, when visited, execute malicious scripts that may steal session cookies, redirect users to phishing sites, or inject malicious content into web pages. The impact extends beyond simple script execution as it can lead to complete browser compromise and potential data exfiltration. Users remain unaware of the attack until they interact with the malicious content, making this particularly dangerous in targeted attacks.
The vulnerability aligns with common weakness enumeration 79 which identifies cross-site scripting flaws in web applications and browsers. It also maps to attack technique t1059 in the attack framework which covers command and scripting interpreter execution. The attack vector requires minimal user interaction beyond visiting a malicious link, making it particularly effective for social engineering campaigns. Organizations should consider this vulnerability as part of broader browser security assessments and implement proper url sanitization mechanisms.
Mitigation strategies include immediate updating of safari browsers to version 3.1 or later where the vulnerability has been patched. System administrators should also implement web application firewalls that can detect and block malicious url patterns, and educate users about the dangers of visiting untrusted links. Additional protective measures include enabling browser security features such as content security policies and implementing proper input validation at all levels of web application architecture. Regular security audits should verify that error handling mechanisms properly escape user input to prevent similar vulnerabilities in other browser implementations.
The vulnerability demonstrates how seemingly minor implementation flaws in browser error handling can create significant security risks. It highlights the importance of thorough input validation across all user-facing components of web browsers and the need for consistent security practices regardless of operating system platform. This case study serves as a reminder that browser security is not just about protecting against external threats but also about ensuring proper internal handling of malformed inputs and error conditions.