CVE-2016-7209 in Edge
Summary
by MITRE
Microsoft Edge allows remote attackers to spoof web content via a crafted web site, aka "Microsoft Edge Spoofing Vulnerability."
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Analysis
by VulDB Data Team • 09/29/2022
The Microsoft Edge Spoofing Vulnerability represents a critical security flaw that enables remote attackers to manipulate web content presentation in the Edge browser, potentially leading to deception and phishing attacks. This vulnerability specifically affects Microsoft Edge versions prior to the security updates released in 2016, creating a window of opportunity for threat actors to craft malicious websites that can deceive users about the authenticity of web content. The flaw stems from insufficient validation mechanisms within the browser's rendering engine that fail to properly distinguish between legitimate and forged content elements, particularly in how visual indicators and security warnings are displayed to end users.
The technical implementation of this vulnerability exploits the browser's handling of web page elements and visual presentation components, allowing attackers to manipulate the display of security indicators such as address bar content, certificate information, and other user interface elements that typically help users identify trustworthy websites. Attackers can craft malicious sites that appear to display legitimate security warnings or certificates while simultaneously presenting fraudulent content, effectively bypassing the user's ability to make informed security decisions. This manipulation occurs at the browser rendering level where visual cues are processed and displayed, leveraging weaknesses in the validation and verification mechanisms that should ensure the integrity of security-related information.
The operational impact of this vulnerability extends beyond simple content spoofing, as it fundamentally undermines user trust in the browser's security warnings and visual indicators. Users may be deceived into entering sensitive information on fraudulent sites that appear legitimate due to the compromised visual presentation, leading to potential credential theft, financial fraud, and data compromise. The vulnerability creates a persistent risk for organizations where employees may inadvertently interact with malicious sites that appear to be secure or legitimate, particularly in environments where security awareness training may not adequately address browser-based spoofing attacks. This risk is amplified in corporate settings where users may trust the browser's security warnings without sufficient verification.
Security professionals should implement multiple layers of defense to mitigate this vulnerability, including immediate deployment of Microsoft security updates and patches, enhanced browser security configurations, and user education about recognizing potential spoofing attempts. Organizations should consider implementing additional security controls such as web application firewalls, content filtering solutions, and browser hardening measures that can detect and prevent malicious content delivery. The vulnerability aligns with CWE-20, which describes improper input validation, and maps to ATT&CK technique T1566 for social engineering attacks that leverage browser-based deception. Regular security assessments and monitoring of browser-related security events should be implemented to detect potential exploitation attempts and ensure continued protection against similar vulnerabilities in the browser ecosystem.