CVE-2016-0100 in Windows
Summary
by MITRE
Microsoft Windows Vista SP2 and Server 2008 SP2 mishandle library loading, which allows local users to gain privileges via a crafted application, aka "Library Loading Input Validation Remote Code Execution Vulnerability."
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Analysis
by VulDB Data Team • 04/28/2025
The vulnerability identified as CVE-2016-0100 represents a critical privilege escalation flaw in Microsoft Windows Vista SP2 and Windows Server 2008 SP2 operating systems. This weakness stems from improper validation of library loading operations within the Windows operating system framework, creating a pathway for local attackers to elevate their privileges from standard user level to administrative rights. The vulnerability specifically affects systems running Windows Vista with Service Pack 2 and Windows Server 2008 with Service Pack 2, making it particularly relevant for enterprise environments that may still maintain legacy systems.
The technical root cause of this vulnerability lies in the manner Windows handles dynamic library loading operations, particularly when processing certain input parameters during the loading sequence. The system fails to properly validate the paths and references used during library resolution, allowing malicious code to manipulate the loading process. This flaw operates under CWE-248, an unspecified weakness that encompasses improper handling of library loading operations, and aligns with ATT&CK technique T1068 which describes local privilege escalation through the exploitation of system vulnerabilities. Attackers can craft a malicious application that leverages this weakness by manipulating the library loading sequence to inject malicious code into higher-privileged processes.
The operational impact of CVE-2016-0100 extends beyond simple privilege escalation, as it provides attackers with a persistent foothold within affected systems. Once successfully exploited, the vulnerability allows attackers to execute arbitrary code with elevated privileges, potentially enabling complete system compromise. This vulnerability is particularly dangerous in enterprise environments where multiple users may have standard accounts while administrators maintain elevated privileges. The local nature of the attack means that an attacker does not require network access or remote exploitation capabilities, making it easier to exploit within targeted environments. Systems affected by this vulnerability could experience unauthorized access to sensitive data, system manipulation, and potential lateral movement within network environments.
Mitigation strategies for this vulnerability should prioritize immediate patching through Microsoft's security updates, as the primary defense against this specific weakness. Organizations should implement comprehensive vulnerability management processes to identify and remediate systems running affected Windows versions. Additional defensive measures include implementing application whitelisting policies to prevent unauthorized executable code from running, enabling Windows Defender Application Control, and maintaining strict access controls to limit user privileges. Network segmentation and monitoring solutions should be deployed to detect anomalous behavior that might indicate exploitation attempts. Security teams should also consider implementing behavioral analysis tools that can detect suspicious library loading patterns, as this vulnerability specifically exploits weaknesses in how the operating system processes dynamic library references. The remediation process must include thorough testing of patches in controlled environments to ensure compatibility with existing applications while maintaining system security posture.