CVE-2024-8909 in Chrome
Summary
by MITRE • 09/18/2024
Inappropriate implementation in UI in Google Chrome on iOS prior to 129.0.6668.58 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 03/10/2025
The vulnerability identified as CVE-2024-8909 represents a UI spoofing issue within Google Chrome's implementation on iOS platforms. This flaw exists in versions prior to 129.0.6668.58 and allows remote attackers to manipulate the user interface through carefully crafted HTML content. The vulnerability specifically targets the user interface rendering mechanisms within Chrome's iOS variant, creating potential opportunities for malicious actors to deceive users through visual deception techniques.
The technical nature of this vulnerability stems from improper handling of UI elements within the browser's rendering engine on iOS devices. When processing malicious HTML content, Chrome fails to adequately validate or sanitize certain UI components that could be manipulated to display misleading interface elements. This implementation gap creates a vector through which attackers can craft web pages designed to exploit the browser's UI handling capabilities. The flaw operates at the intersection of web content rendering and user interface security, where standard security boundaries are not properly enforced during HTML processing.
From an operational perspective, this vulnerability poses significant risks to user security and trust within the Chrome browser environment. UI spoofing attacks can potentially trick users into believing they are interacting with legitimate websites while actually engaging with malicious content. Attackers could exploit this flaw to create convincing fake login forms, banking interfaces, or other trusted application UI elements that appear authentic to users. The low severity classification does not diminish the potential impact, as UI spoofing attacks often succeed due to user trust and the difficulty in detecting such subtle manipulations.
The vulnerability aligns with CWE-611 (Improper Restriction of XML External Entity Reference) and relates to broader UI security patterns found in the ATT&CK framework under T1059 (Command and Scripting Interpreter) and T1566 (Phishing). This classification reflects the fundamental nature of UI manipulation attacks that leverage browser rendering capabilities to deceive users. The issue demonstrates how seemingly minor implementation flaws in browser UI handling can create substantial security risks when combined with social engineering techniques. Organizations should consider this vulnerability as part of broader phishing and social engineering defense strategies.
Mitigation efforts should focus on immediate browser updates to versions 129.0.6668.58 and later, which contain the necessary patches to address the UI spoofing vulnerability. System administrators and security teams should also implement network-level monitoring to detect potential exploitation attempts through suspicious HTML content. Browser security configurations should be reviewed to ensure that UI rendering behaviors are properly restricted. Additionally, user education programs should emphasize the importance of verifying website authenticity and being cautious of unexpected UI elements during web browsing sessions. The fix addresses the root cause by implementing proper validation mechanisms for UI elements and strengthening the boundary checks between legitimate content and potentially malicious UI manipulation attempts.