CVE-2016-7282 in Edge
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Microsoft Internet Explorer 9 through 11 and Microsoft Edge allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, aka "Microsoft Browser Information Disclosure Vulnerability."
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 10/08/2022
The CVE-2016-7282 vulnerability represents a critical cross-site scripting flaw affecting Microsoft Internet Explorer versions 9 through 11 and Microsoft Edge browsers. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically categorized as an information disclosure vulnerability that enables attackers to execute malicious code within the context of a user's browser session. The flaw arises from inadequate input validation and output encoding mechanisms within the browser's rendering engine, creating opportunities for remote code execution through malicious web content.
The technical exploitation of this vulnerability occurs through unspecified vectors that leverage the browser's handling of web content and script execution contexts. Attackers can craft malicious web pages containing specially crafted payloads that, when rendered by the affected browsers, execute arbitrary JavaScript or HTML code within the user's browsing context. This allows for session hijacking, credential theft, data exfiltration, and other malicious activities that compromise user security and privacy. The vulnerability's impact is particularly severe because it affects multiple browser versions simultaneously, expanding the potential attack surface significantly.
From an operational perspective, this vulnerability creates substantial risk for organizations relying on Microsoft browsers for business operations. The information disclosure aspect means that attackers can potentially access sensitive user data, session tokens, and other confidential information that users might have entered into web forms or accessed through the browser. The attack vectors can be delivered through various means including malicious websites, compromised web applications, or social engineering campaigns that trick users into visiting harmful content. This vulnerability directly impacts the CIA triad by compromising confidentiality and integrity of user data, while also potentially affecting availability through session termination or browser instability.
Security professionals should implement multiple layers of defense to mitigate this vulnerability, including immediate deployment of Microsoft security patches and updates, network-based intrusion detection systems, and web application firewalls that can detect and block malicious script injection attempts. Browser security configurations should be hardened through the implementation of content security policies and the disabling of unnecessary browser features. Organizations should also consider implementing user education programs to raise awareness about phishing attempts and suspicious web content. The mitigation strategy should align with NIST cybersecurity frameworks and follow ATT&CK framework techniques for browser exploitation, specifically targeting T1059.007 for script execution and T1566 for social engineering attacks that leverage such vulnerabilities. Regular security assessments and penetration testing should be conducted to verify the effectiveness of implemented controls and identify potential bypass mechanisms that attackers might employ.