CVE-2014-2809 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 6 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-2014-2800 and CVE-2014-2807.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 12/20/2024
This vulnerability affects Microsoft Internet Explorer versions 6 through 11 and represents a critical memory corruption flaw that enables remote code execution or denial of service attacks. The vulnerability stems from improper handling of memory operations when processing specially crafted web content, creating opportunities for attackers to inject malicious code into the browser's memory space. The flaw specifically manifests when Internet Explorer attempts to parse and render malicious web pages, leading to unpredictable memory state changes that can be exploited by threat actors. This vulnerability operates at a fundamental level within the browser's memory management system, making it particularly dangerous as it can bypass traditional security controls and execute arbitrary instructions with the privileges of the running browser process.
The technical implementation of this vulnerability involves memory corruption patterns that align with common exploit techniques described in the CWE (Common Weakness Enumeration) catalog under weakness categories related to buffer overflows and memory corruption. Attackers can leverage this flaw by hosting malicious web content that, when loaded in Internet Explorer, triggers the memory corruption through specific parsing operations. The vulnerability demonstrates characteristics consistent with heap-based buffer overflow conditions where attacker-controlled data is written beyond allocated memory boundaries, potentially allowing for code execution in the context of the current user. This type of vulnerability falls under the ATT&CK framework's technique T1059 for command and scripting interpreter, as successful exploitation can lead to arbitrary code execution on the target system.
The operational impact of CVE-2014-2809 extends beyond simple remote code execution to include significant system compromise potential and denial of service scenarios. When exploited successfully, the vulnerability can allow attackers to gain full control over the affected system, install malicious software, steal sensitive data, or establish persistent backdoors. The widespread adoption of Internet Explorer across enterprise environments means that successful exploitation could affect numerous systems simultaneously, potentially enabling large-scale attacks against organizations. The vulnerability's persistence across multiple IE versions indicates a fundamental flaw in the browser's memory handling mechanisms that was not adequately addressed through patch updates, requiring comprehensive system remediation. Organizations must implement immediate mitigation strategies including browser updates, network-based protections, and user education to reduce exposure to this critical vulnerability.
Mitigation strategies for this vulnerability should include immediate deployment of Microsoft security patches and updates, implementation of network-based protections such as web application firewalls and content filtering systems, and user behavior modifications to avoid visiting untrusted websites. Security professionals should also consider implementing browser hardening techniques, disabling unnecessary browser features, and establishing robust monitoring systems to detect potential exploitation attempts. The vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates the critical need for organizations to have comprehensive vulnerability management processes in place. Additionally, organizations should consider implementing sandboxing technologies and browser isolation solutions to limit the potential impact of successful exploitation attempts, as the memory corruption nature of this vulnerability makes traditional endpoint protection solutions less effective.