CVE-2019-1071 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 CVE ID is unique from CVE-2019-1073.
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Analysis
by VulDB Data Team • 10/18/2023
The vulnerability described in CVE-2019-1071 represents a critical information disclosure flaw within the Windows kernel operating system component. This vulnerability specifically manifests when the kernel fails to properly handle objects stored in memory, creating opportunities for unauthorized information exposure. The flaw exists at the core level of the operating system where memory management operations are processed, making it particularly dangerous as it operates within the privileged execution context of the kernel itself.
This information disclosure vulnerability falls under the category of memory corruption issues that are commonly classified as CWE-200 (Information Exposure) and may also relate to CWE-125 (Out-of-bounds Read) or CWE-129 (Improper Validation of Array Index) depending on the specific implementation details. The vulnerability allows an attacker to potentially extract sensitive information from kernel memory spaces that should normally be protected from user-mode access. This type of flaw is particularly concerning because it can expose system internals, memory addresses, and potentially sensitive data that could be leveraged for further exploitation attempts.
The operational impact of this vulnerability extends beyond simple information disclosure as it creates a foundation for more sophisticated attacks within the Windows security model. Attackers who successfully exploit this vulnerability can gain insights into kernel memory structures, which may reveal patterns that could be used to bypass other security mechanisms. This information can be particularly valuable when combined with other exploits, as it provides attackers with knowledge of system internals that can be used to craft more effective attacks. The vulnerability affects multiple Windows versions including Windows 10, Windows Server 2016, and Windows Server 2019, making it a widespread concern across enterprise environments.
From an operational security perspective, this vulnerability aligns with techniques documented in the MITRE ATT&CK framework under the Information Gathering phase, where adversaries collect information about the target system to plan subsequent operations. The vulnerability can be exploited through various attack vectors including malicious code execution or privilege escalation attempts. Organizations should implement immediate mitigation strategies including applying the relevant Microsoft security patches, monitoring for unusual memory access patterns, and implementing network segmentation to limit potential attack surfaces. The vulnerability highlights the importance of proper memory management practices and the need for robust kernel security mechanisms that prevent unauthorized information disclosure. Additionally, system administrators should conduct regular security assessments and maintain updated threat intelligence to detect potential exploitation attempts that may leverage this vulnerability for broader system compromise.