CVE-2023-6511 in Chrome
Summary
by MITRE • 12/06/2023
Inappropriate implementation in Autofill in Google Chrome prior to 120.0.6099.62 allowed a remote attacker to bypass Autofill restrictions via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 12/24/2023
The vulnerability identified as CVE-2023-6511 represents a weakness in Google Chrome's Autofill implementation that could potentially allow remote attackers to circumvent intended security restrictions. This issue affects Chrome versions prior to 120.0.6099.62 and is classified as a low severity vulnerability by Chromium security standards. The flaw manifests through crafted HTML pages that can manipulate the browser's autofill functionality, creating a potential vector for unauthorized data access or manipulation.
The technical implementation flaw resides in how Chrome processes and validates autofill restrictions within HTML documents. When users encounter maliciously crafted web pages, the browser's autofill system may incorrectly interpret certain HTML elements or attributes, leading to bypass of normally enforced security boundaries. This misimplementation allows attackers to potentially access or modify user data that should be protected by autofill restrictions, particularly when dealing with forms and input fields that contain sensitive information.
The operational impact of this vulnerability extends beyond simple data exposure, as it could enable attackers to manipulate user input fields in ways that circumvent typical security measures. Users interacting with compromised websites might unknowingly have their personal information collected or modified through manipulated autofill behaviors. The low severity classification does not diminish the potential risk, as even minor bypasses in browser security can create opportunities for more sophisticated attacks when combined with other vulnerabilities or techniques.
This vulnerability aligns with CWE-693, which addresses Protection Mechanism Failure, specifically in the context of browser security implementations. The issue demonstrates how inadequate validation of user input within web browser components can create security gaps that attackers can exploit. From an ATT&CK framework perspective, this vulnerability maps to T1059.001 for Command and Scripting Interpreter and potentially T1566 for Phishing, as attackers could craft malicious pages to exploit this weakness and gather user credentials or personal information.
Mitigation strategies should prioritize immediate update to Chrome version 120.0.6099.62 or later, which contains the necessary patches to address the Autofill restriction bypass. Organizations should also implement additional security measures such as web application firewalls, content security policies, and regular browser security audits. Users should maintain awareness of suspicious websites and avoid interacting with unfamiliar forms or input fields that might be manipulated through such vulnerabilities. Security teams should monitor for indicators of compromise related to malicious web pages that could exploit this vulnerability during the transition period before full patch adoption.