CVE-2019-1007 in Windows
Summary
by MITRE
An elevation of privilege exists in Windows Audio Service, aka 'Windows Audio Service Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1021, CVE-2019-1022, CVE-2019-1026, CVE-2019-1027, CVE-2019-1028.
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Analysis
by VulDB Data Team • 05/20/2025
The Windows Audio Service elevation of privilege vulnerability represents a critical security flaw that allows unprivileged users to escalate their system privileges to the highest level possible within the Windows operating environment. This vulnerability specifically affects the Windows Audio service component that manages audio playback and recording functions across the system. The flaw exists in the way the audio service handles certain privilege checks and access controls, creating an avenue for malicious actors to bypass normal security boundaries and gain administrative access to affected systems. The vulnerability impacts multiple Windows versions including Windows 10 and Windows Server 2016, making it particularly concerning given the widespread deployment of these operating systems in enterprise environments.
The technical implementation of this vulnerability stems from improper privilege validation within the Windows Audio service execution context. Attackers can exploit this flaw by manipulating specific audio-related API calls or service interactions that should normally require elevated privileges but instead allow unprivileged code execution with administrative rights. This type of vulnerability falls under the CWE-269 weakness category, specifically related to improper privilege management where the system fails to properly enforce access controls for privileged operations. The flaw essentially allows a local attacker to execute arbitrary code with SYSTEM level privileges, effectively compromising the entire system. This represents a classic privilege escalation vector that leverages the service's inherent trust relationships to bypass security boundaries.
The operational impact of this vulnerability extends far beyond simple local privilege escalation, as it provides attackers with complete control over affected systems and their resources. Once successfully exploited, the attacker gains access to all system files, can install malicious software, modify system configurations, and potentially access sensitive data stored on the compromised machine. The vulnerability's persistence across multiple Windows versions means that organizations cannot simply avoid affected systems by upgrading to newer releases, as the flaw exists in core Windows components that are fundamental to system operation. This makes the vulnerability particularly dangerous in enterprise environments where audio services are commonly used and where the attack surface remains broad due to the service's integration with various applications and system components.
Mitigation strategies for this vulnerability should focus on immediate patch application through Microsoft's regular security updates, as the vendor has released specific patches addressing this flaw. Organizations should also implement additional security controls such as restricting local user privileges, monitoring audio service access patterns for anomalous behavior, and ensuring that only authorized users have access to systems running vulnerable versions of Windows. Network segmentation and application whitelisting can help reduce the potential impact of exploitation by limiting what malicious code can execute even if the vulnerability is successfully exploited. The ATT&CK framework categorizes this vulnerability under privilege escalation techniques, specifically targeting the 'Exploitation for Privilege Escalation' tactic where adversaries leverage software flaws to gain elevated system access. Security teams should also consider implementing endpoint detection and response solutions that can identify suspicious audio service interactions and alert on potential exploitation attempts. Given the nature of this vulnerability and its potential for system-wide compromise, organizations should conduct thorough security assessments to identify all potentially affected systems and ensure complete remediation through proper patch management processes.