CVE-2020-1282 in Windows
Summary
by MITRE
An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory, aka 'Windows Runtime Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1231, CVE-2020-1233, CVE-2020-1235, CVE-2020-1265, CVE-2020-1304, CVE-2020-1306, CVE-2020-1334.
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Analysis
by VulDB Data Team • 10/23/2020
The Windows Runtime elevation of privilege vulnerability identified as CVE-2020-1282 represents a critical security flaw within Microsoft's Windows operating system runtime environment. This vulnerability stems from improper handling of objects in memory by the Windows Runtime component, which serves as a foundational framework for modern Windows applications including those developed using UWP (Universal Windows Platform) technologies. The flaw specifically affects how the runtime manages memory objects during application execution, creating potential pathways for malicious actors to escalate their privileges within the system.
The technical nature of this vulnerability falls under CWE-121, which describes "Stack-based Buffer Overflow" conditions, though the specific implementation involves memory management issues within the Windows Runtime subsystem. When applications interact with the Windows Runtime APIs, particularly those involving object marshaling and memory allocation, the system fails to properly validate or sanitize memory objects, potentially allowing attackers to manipulate memory contents. This improper object handling creates opportunities for privilege escalation attacks where unprivileged processes could potentially gain elevated system privileges.
From an operational perspective, this vulnerability poses significant risks to enterprise environments and individual users alike. Attackers could exploit this weakness to execute malicious code with higher privileges than initially granted, potentially leading to complete system compromise. The attack surface includes any application or service that utilizes Windows Runtime components, making the impact widespread across modern Windows deployments. The vulnerability's exploitation typically requires local access or a specific attack vector that could be leveraged through malicious applications or compromised system services, though the exact attack scenarios would depend on the specific memory manipulation techniques employed.
Security professionals should implement immediate mitigations including applying Microsoft's security patches and updates as released through the regular Windows Update cycle. Organizations should also consider implementing additional security controls such as application whitelisting, enhanced monitoring of Windows Runtime API usage, and privileged access management controls. The vulnerability aligns with ATT&CK technique T1068, which covers "Exploitation for Privilege Escalation," and T1548.002, covering "Abuse Elevation Control Mechanism." System administrators should also monitor for unusual patterns in Windows Runtime activity and consider implementing sandboxing measures for applications that heavily utilize Windows Runtime components. The vulnerability demonstrates the importance of proper memory management in system-level components and highlights the need for continuous security assessments of foundational runtime environments.