CVE-2018-0901 in Windows
Summary
by MITRE
The Windows kernel in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709, Windows Server 2016 and Windows Server, version 1709 allows an information disclosure vulnerability due to the way memory addresses are handled, aka "Windows Kernel Information Disclosure Vulnerability". This CVE is unique from CVE-2018-0811, CVE-2018-0813, CVE-2018-0814, CVE-2018-0894, CVE-2018-0895, CVE-2018-0896, CVE-2018-0897, CVE-2018-0898, CVE-2018-0899, CVE-2018-0900, and CVE-2018-0926.
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Analysis
by VulDB Data Team • 08/17/2024
The vulnerability identified as CVE-2018-0901 represents a critical information disclosure flaw within the Windows kernel component that affects multiple operating system versions including Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, and various Windows 10 releases up to version 1709. This issue stems from improper handling of memory addresses within the kernel execution environment, creating potential exposure of sensitive kernel memory locations to unauthorized users. The vulnerability specifically impacts the kernel-mode drivers and system components that manage memory management operations, making it particularly dangerous as it operates at the most privileged level of the operating system. The flaw allows attackers to potentially extract kernel memory addresses that could be used in subsequent exploitation attempts, making this vulnerability a significant concern for system security.
The technical nature of this vulnerability falls under CWE-200, which describes "Information Exposure," and is classified as a memory management issue within the kernel space. The root cause lies in how the Windows kernel processes and handles memory address information during normal system operations, where insufficient validation or sanitization of memory references allows for unintended information leakage. This particular flaw operates at the kernel level, meaning that any successful exploitation could provide attackers with detailed insights into the kernel's memory layout, including base addresses of critical system components, which would significantly aid in bypassing security mechanisms like address space layout randomization. The vulnerability is particularly concerning because it affects a wide range of Windows versions, from older server environments to newer client operating systems, indicating a widespread impact across Microsoft's product portfolio.
The operational impact of CVE-2018-0901 extends beyond simple information disclosure, as the leaked memory addresses can be leveraged as part of more sophisticated exploitation techniques. Attackers could potentially use the disclosed information to craft more effective buffer overflow attacks, return-oriented programming (ROP) chains, or other advanced exploitation methods that rely on knowing specific memory layouts. This vulnerability aligns with ATT&CK technique T1059.001 for command and scripting interpreter usage, as attackers might use the information to better target system components. The exposure of kernel memory addresses essentially provides attackers with a roadmap into the most privileged portions of the operating system, making this vulnerability particularly dangerous when combined with other exploitation techniques. Organizations running affected systems face significant risk of privilege escalation attacks that could ultimately lead to complete system compromise.
Mitigation strategies for CVE-2018-0901 should focus on both immediate patching and operational security measures. Microsoft released security updates that address this vulnerability through kernel memory management improvements and enhanced validation of memory address handling. Organizations should prioritize applying the relevant security patches as soon as possible, particularly since this vulnerability affects multiple Windows versions that may still be in production environments. Additionally, implementing network segmentation and access controls can help limit the potential impact of successful exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches and highlights the critical nature of kernel-level security flaws that can provide attackers with foundational information for more complex attacks. Security monitoring should include detection of unusual memory access patterns and potential exploitation attempts that might leverage this information disclosure for further compromise.