CVE-2011-1193 in Chrome
Summary
by MITRE
Google V8, as used in Google Chrome before 10.0.648.127, allows remote attackers to bypass the Same Origin Policy via unspecified vectors.
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Analysis
by VulDB Data Team • 10/19/2021
The vulnerability identified as CVE-2011-1193 represents a critical security flaw in Google V8 JavaScript engine that powers Google Chrome browser. This vulnerability specifically targets the Same Origin Policy implementation, which serves as a fundamental security mechanism in web browsers designed to prevent unauthorized access to resources across different origins. The Same Origin Policy is a core security principle that restricts how documents or scripts loaded from one origin can interact with resources from another origin, thereby preventing malicious actors from accessing sensitive data or performing unauthorized operations.
The technical flaw in Google V8 stems from insufficient validation mechanisms that allow attackers to exploit unspecified vectors to circumvent the security boundaries established by the Same Origin Policy. This vulnerability enables remote attackers to execute cross-origin requests that should normally be blocked by the browser's security model. The issue manifests in the way V8 handles JavaScript execution contexts and memory management, creating potential pathways for privilege escalation and unauthorized data access. Attackers can leverage this vulnerability to perform actions such as reading sensitive data from other origins, executing malicious code in different security contexts, or bypassing access controls that should prevent such interactions.
The operational impact of CVE-2011-1193 is significant as it undermines the fundamental security architecture of web browsers that rely on V8 for JavaScript execution. This vulnerability allows attackers to perform cross-site scripting attacks with enhanced capabilities, potentially leading to session hijacking, data theft, or complete browser compromise. The vulnerability affects users of Google Chrome versions prior to 10.0.648.127, making a substantial user base vulnerable to exploitation. Organizations relying on Chrome-based applications face increased risk of data breaches and unauthorized access to sensitive information, as the vulnerability can be exploited through malicious websites or compromised web applications.
Security professionals should prioritize patching affected systems immediately, as this vulnerability aligns with common attack patterns documented in the attack mitigation frameworks. The flaw demonstrates the importance of proper sandboxing and memory protection mechanisms in JavaScript engines, as referenced in CWE-242 and related weakness classifications. Organizations should implement network monitoring to detect potential exploitation attempts and consider deploying web application firewalls to provide additional protection layers. The vulnerability also highlights the need for comprehensive security testing of JavaScript engine components and regular security assessments of browser-based applications to identify similar implementation flaws. Mitigation strategies should include mandatory browser updates, user education about phishing risks, and implementation of security headers to reduce the attack surface available to exploit such vulnerabilities.