CVE-2017-8674 in Edge
Summary
by MITRE
Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user due to the way that Microsoft browser JavaScript engines render content when handling objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8634, CVE-2017-8635, CVE-2017-8636, CVE-2017-8638, CVE-2017-8639, CVE-2017-8640, CVE-2017-8641, CVE-2017-8645, CVE-2017-8646, CVE-2017-8647, CVE-2017-8655, CVE-2017-8656, CVE-2017-8657, CVE-2017-8670, CVE-2017-8671, and CVE-2017-8672.
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Analysis
by VulDB Data Team • 08/23/2024
This vulnerability represents a critical memory corruption flaw within Microsoft Edge's JavaScript engine that affects Windows 10 version 1703. The issue stems from improper handling of objects in memory during content rendering processes, creating a pathway for remote code execution attacks. The vulnerability specifically targets the scripting engine's memory management mechanisms, where malformed or maliciously crafted web content can trigger memory corruption that allows attackers to execute arbitrary code with the privileges of the currently logged-in user. This type of vulnerability falls under the CWE-125 weakness category, which encompasses out-of-bounds read conditions that can lead to memory corruption and arbitrary code execution. The flaw demonstrates how browser-based memory management can be exploited to bypass security boundaries and escalate privileges.
The operational impact of this vulnerability extends beyond simple code execution as it provides attackers with a persistent foothold within the target system. When exploited successfully, the vulnerability enables attackers to run malicious code in the context of the current user, potentially leading to full system compromise. The attack surface is particularly concerning given that Microsoft Edge is a widely used browser application that processes web content from untrusted sources. Security researchers have identified that this vulnerability aligns with the ATT&CK technique T1059.001, which describes the use of scripting languages for execution, and T1068, which covers privilege escalation through local exploitation. The memory corruption occurs during JavaScript engine processing when handling specific object types, making it particularly challenging to detect and prevent through traditional security measures.
Mitigation strategies for this vulnerability require immediate patch deployment as the primary defense mechanism. Microsoft released security updates to address this specific memory corruption issue, and system administrators must ensure all affected Windows 10 systems receive the appropriate patches. Organizations should implement network-level controls such as web application firewalls and content filtering systems to reduce exposure to malicious web content. The vulnerability also highlights the importance of browser hardening measures including disabling unnecessary JavaScript features, implementing strict content security policies, and utilizing sandboxing technologies. Additionally, security monitoring should focus on detecting unusual code execution patterns and memory access anomalies that might indicate exploitation attempts. Regular security assessments and penetration testing can help identify potential exploitation vectors while maintaining compliance with industry standards such as those outlined in the NIST Cybersecurity Framework and ISO 27001 requirements for vulnerability management.