CVE-2015-2411 in Internet Explorer
Summary
by MITRE
Microsoft Internet Explorer 10 and 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-2015-1733 and CVE-2015-2389.
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Analysis
by VulDB Data Team • 11/29/2024
This vulnerability represents a critical memory corruption flaw in Microsoft Internet Explorer versions 10 and 11 that enables remote code execution through malicious web content. The issue stems from improper handling of objects in memory during web page rendering processes, creating a condition where attacker-controlled data can overwrite critical memory segments. The vulnerability falls under the CWE-125 weakness category, which describes out-of-bounds read conditions that can lead to memory corruption and arbitrary code execution. Attackers exploit this by crafting specially designed web pages that trigger the memory corruption when the browser attempts to render specific elements, potentially allowing full system compromise.
The technical exploitation of CVE-2015-2411 leverages the browser's rendering engine to manipulate memory layout and execute malicious code with the privileges of the logged-in user. This type of vulnerability typically occurs when Internet Explorer processes certain JavaScript or HTML elements without proper bounds checking, allowing attackers to control memory pointers and execute arbitrary instructions. The flaw is particularly dangerous because it can be triggered through standard web browsing activities, making it highly suitable for drive-by download attacks. According to ATT&CK framework, this vulnerability maps to T1059.007 (Command and Scripting Interpreter: JavaScript) and T1068 (Exploitation for Privilege Escalation) techniques, as it enables both initial compromise and privilege escalation.
The operational impact of this vulnerability extends beyond simple remote code execution to include complete system compromise and potential data exfiltration. Successful exploitation can result in persistent backdoor access, allowing attackers to maintain long-term presence on compromised systems. Organizations running affected Internet Explorer versions face significant risk during routine web browsing activities, as the attack surface includes any web content that might trigger the memory corruption. The vulnerability's similarity to other memory corruption issues like CVE-2015-1733 and CVE-2015-2389 demonstrates a pattern of rendering engine flaws that affect multiple versions of Internet Explorer, highlighting the need for comprehensive patch management strategies. Network defenders must implement multiple layers of protection including web application firewalls, browser isolation technologies, and regular security updates to mitigate the risk of exploitation.
Mitigation strategies for CVE-2015-2411 should include immediate patch deployment through Microsoft's security updates, as well as browser hardening measures such as disabling unnecessary JavaScript features and implementing strict content security policies. Organizations should also consider deploying browser sandboxing solutions and monitoring for suspicious web traffic patterns that might indicate exploitation attempts. The vulnerability underscores the importance of maintaining current security patches and implementing defense-in-depth strategies to protect against zero-day exploits. Security teams should conduct regular vulnerability assessments targeting Internet Explorer installations and ensure that legacy browser support is properly managed through appropriate security controls. Additionally, user education regarding safe browsing practices and the risks of visiting untrusted websites remains crucial in reducing the likelihood of successful exploitation.