CVE-2016-3290 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 11 allows remote attackers to execute arbitrary code via a crafted web page, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2016-3288.
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Analysis
by VulDB Data Team • 09/13/2022
Microsoft Internet Explorer 11 contains a memory corruption vulnerability that enables remote code execution when users visit malicious web pages. This vulnerability represents a critical security flaw in the browser's handling of memory operations during web page rendering and script execution processes. The issue specifically affects Internet Explorer 11 on Windows 10, Windows 8.1, and Windows 7 systems, making it a widespread concern for enterprise environments that continue to use legacy browser versions. The vulnerability stems from improper memory management when processing certain web content, creating opportunities for attackers to manipulate memory addresses and execute malicious code with the privileges of the logged-in user.
The technical nature of this vulnerability aligns with CWE-125, which describes out-of-bounds read conditions in memory management systems. Attackers can craft malicious web pages that trigger buffer overflows or memory corruption during JavaScript execution or HTML parsing operations within Internet Explorer. The flaw occurs when the browser's scripting engine fails to properly validate memory boundaries during object manipulation, allowing attackers to overwrite critical memory locations. This type of vulnerability typically involves manipulating heap memory structures or stack-based buffer overflows that can be exploited through carefully constructed web content. The vulnerability is particularly dangerous because it can be triggered automatically through web browsers without requiring user interaction beyond visiting a malicious site, making it a prime candidate for drive-by download attacks.
The operational impact of this vulnerability extends beyond simple remote code execution, as it can lead to complete system compromise and persistent backdoor access. Once exploited, attackers can install malware, steal sensitive data, or establish persistent access to affected systems. The vulnerability affects organizations using Internet Explorer 11 in corporate environments where legacy applications may require the browser for compatibility reasons, creating additional security challenges. Security professionals should note that this vulnerability can be leveraged through social engineering campaigns where users are directed to malicious websites through phishing emails or compromised legitimate sites. The attack surface is broad given Internet Explorer's widespread use in enterprise environments and the fact that many organizations have not migrated away from legacy browser versions.
Organizations should implement immediate mitigations including deploying Microsoft security updates and patches to address the vulnerability, as well as implementing browser hardening measures such as disabling unnecessary browser features and implementing strict content security policies. Network-based protections such as web application firewalls and intrusion detection systems can help detect and block exploitation attempts. The vulnerability also maps to several ATT&CK techniques including T1203 (Exploitation for Client Execution) and T1059 (Command and Scripting Interpreter) which describe how attackers use browser vulnerabilities to establish initial access and execute commands. Regular security assessments should include testing for this vulnerability using automated scanning tools and manual verification techniques to ensure proper patch management and system hardening measures are in place. Given the nature of memory corruption vulnerabilities, organizations should also consider implementing exploit prevention technologies and monitoring for anomalous memory access patterns that may indicate exploitation attempts.