CVE-2017-0101 in Windows
Summary
by MITRE
The kernel-mode drivers in Transaction Manager in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2; Windows 7 SP1; Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allow local users to gain privileges via a crafted application, aka "Windows Elevation of Privilege Vulnerability."
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Analysis
by VulDB Data Team • 12/26/2024
This vulnerability represents a critical privilege escalation flaw in Microsoft Windows kernel-mode drivers related to the Transaction Manager component. The issue affects multiple Windows versions including Vista SP2, Windows Server 2008 SP2 and R2, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 versions 1511 and 1607, and Windows Server 2016. The vulnerability specifically resides in the kernel-mode drivers that handle transaction management operations, creating an opportunity for local attackers to elevate their privileges from standard user level to system level. According to CWE-119, this represents a weakness in memory handling that allows for improper access to kernel memory regions, making it a classic buffer overflow or memory corruption vulnerability that can be exploited to execute arbitrary code with elevated privileges. The vulnerability operates by allowing a crafted application to manipulate kernel-mode data structures or memory locations that should be protected, ultimately enabling privilege escalation attacks.
The technical exploitation mechanism involves leveraging a flaw in how kernel-mode drivers process transaction-related operations, particularly in the Transaction Manager component that handles distributed transactions and ensures data consistency across multiple operations. Attackers can craft malicious applications that trigger specific code paths in the kernel drivers, causing memory corruption or improper privilege handling that results in privilege escalation. This vulnerability falls under the ATT&CK technique T1068, which describes "Exploitation for Privilege Escalation" and specifically relates to the use of kernel-mode exploits to gain SYSTEM-level privileges. The flaw allows attackers to bypass normal access controls and execute code with the highest possible privileges, effectively compromising the entire system. The vulnerability is particularly dangerous because it requires no network access and can be exploited locally, meaning that any user with access to the system can potentially exploit it.
The operational impact of this vulnerability is severe as it provides attackers with complete system compromise capabilities, allowing them to access all system resources, modify critical system files, install malware, and potentially establish persistent backdoors. Once escalated to SYSTEM privileges, attackers can manipulate the Windows registry, modify system security policies, access encrypted data, and perform actions that would otherwise be restricted to administrators or system processes. The vulnerability affects all supported versions of Windows mentioned in the CVE, creating a widespread impact across enterprise environments where multiple Windows versions may be present. Organizations running these affected systems face significant risk of data breaches, system compromise, and potential lateral movement within their networks. The vulnerability also impacts enterprise security posture by undermining the fundamental security model of Windows operating systems, where user privileges are strictly enforced to prevent unauthorized access to system resources.
Mitigation strategies for this vulnerability should include immediate deployment of Microsoft security patches, which address the underlying kernel-mode driver issues in the Transaction Manager component. Organizations should implement the principle of least privilege and ensure that users have only the minimum required permissions to perform their tasks. System administrators should monitor for unusual privilege escalation activities and implement enhanced logging for kernel-mode operations. The vulnerability also highlights the importance of regular security updates and vulnerability management processes, as it represents a flaw that could have been prevented through timely patch deployment. Additionally, implementing security controls such as application whitelisting, kernel-mode protection mechanisms, and monitoring for suspicious kernel-level activities can help detect and prevent exploitation attempts. Organizations should also consider implementing network segmentation and access controls to limit the potential impact of successful exploitation, as the vulnerability allows for complete system compromise once successfully exploited.