CVE-2018-8330 in Windows
Summary
by MITRE
An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory, aka "Windows Kernel Information Disclosure Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
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Analysis
by VulDB Data Team • 05/23/2023
The CVE-2018-8330 vulnerability represents a critical information disclosure flaw within the Windows kernel operating system components that affects multiple versions of Microsoft Windows. This vulnerability stems from improper handling of memory objects by the kernel, creating potential exposure of sensitive system information to unauthorized parties. The flaw specifically impacts Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, and Windows 10 Servers, indicating a widespread impact across Microsoft's legacy and current operating system lines.
The technical root cause of this vulnerability lies in how the Windows kernel manages memory objects during certain operations, particularly when processing specific kernel-mode components. This improper memory handling allows malicious actors to potentially access kernel-level information that should remain protected from user-mode applications. The vulnerability falls under the CWE-200 category of "Information Exposure" and aligns with ATT&CK technique T1059.001 for command and scripting interpreter execution. When exploited, the vulnerability enables attackers to extract sensitive data from kernel memory regions that contain system information, configuration details, or potentially other confidential data elements.
The operational impact of CVE-2018-8330 extends beyond simple information disclosure, as the leaked kernel information could provide attackers with valuable insights for subsequent exploitation attempts. An attacker who successfully exploits this vulnerability could potentially use the disclosed information to craft more sophisticated attacks, bypass security controls, or perform privilege escalation attacks. The vulnerability's presence in both server and client operating systems means that organizations face risks across their entire infrastructure, from desktop endpoints to critical server environments. This information disclosure could facilitate advanced persistent threat campaigns where attackers use the leaked data to understand system configurations, memory layouts, or other kernel behaviors that would otherwise remain hidden.
Mitigation strategies for CVE-2018-8330 should prioritize immediate patch deployment through Microsoft's regular security updates, as this vulnerability was addressed through the August 2018 security bulletin. Organizations should implement comprehensive monitoring for unusual memory access patterns and ensure that all affected systems receive the applicable security updates. Network segmentation and privilege separation can help limit the potential impact if exploitation occurs, while regular security assessments should verify that systems have been properly patched. The vulnerability's classification as a kernel-level information disclosure makes it particularly concerning for environments with high security requirements, as the leaked information could potentially be leveraged for more severe attacks including those targeting system integrity and confidentiality.