CVE-2014-4098 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 8 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2014-4092.
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Analysis
by VulDB Data Team • 12/22/2024
This vulnerability represents a critical memory corruption flaw affecting Microsoft Internet Explorer versions 8 through 11, categorized under CWE-125 as out-of-bounds read conditions that can lead to arbitrary code execution. The vulnerability arises from improper handling of memory structures when processing specially crafted web content, creating opportunities for attackers to manipulate memory pointers and execute malicious code remotely. The flaw specifically manifests when Internet Explorer encounters malformed data structures in web pages, leading to unpredictable memory behavior that can be exploited to gain unauthorized system access.
The technical implementation of this vulnerability involves the browser's rendering engine failing to properly validate memory allocations when processing complex web elements such as JavaScript objects, DOM manipulations, or multimedia content. Attackers can craft malicious web pages that trigger buffer overflows or use-after-free conditions within the browser's memory management systems. These conditions allow adversaries to overwrite critical memory locations, potentially injecting and executing malicious code with the privileges of the victim user. The vulnerability is particularly dangerous because it operates at the browser level, bypassing many traditional security boundaries and operating system protections.
From an operational perspective, this vulnerability creates significant risk for enterprise environments where Internet Explorer remains in use, as it enables remote code execution without user interaction in many scenarios. The impact extends beyond simple exploitation to include potential privilege escalation and persistent system compromise, making it a prime target for advanced persistent threat actors. Organizations running legacy systems or those unable to immediately migrate from older Internet Explorer versions face heightened exposure, as the vulnerability can be leveraged to establish footholds for broader network infiltration. The memory corruption nature also makes detection challenging, as the exploitation may not immediately result in system crashes but rather subtle memory manipulation that can persist undetected.
Mitigation strategies should focus on immediate patch deployment through Microsoft's security updates, which address the underlying memory handling flaws in the browser's rendering engine. Organizations should implement browser hardening measures including disabling unnecessary features, implementing content security policies, and deploying application whitelisting solutions to limit the impact of potential exploitation. Network-based protections such as web application firewalls and intrusion detection systems can help identify and block malicious web traffic targeting this vulnerability. Additionally, user education regarding safe browsing practices and the importance of keeping software updated remains crucial. The vulnerability aligns with ATT&CK technique T1203, which covers exploitation of remote services, and demonstrates the importance of maintaining current security patches as outlined in NIST SP 800-40 guidelines for vulnerability management. Organizations should also consider implementing sandboxing technologies and browser isolation solutions to contain potential exploitation attempts and limit the attack surface.