CVE-2020-1370 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-2020-1249, CVE-2020-1353, CVE-2020-1399, CVE-2020-1404, CVE-2020-1413, CVE-2020-1414, CVE-2020-1415, CVE-2020-1422.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/15/2020
The Windows Runtime elevation of privilege vulnerability represents a critical security flaw that allows attackers to escalate their privileges within Windows operating systems. This vulnerability specifically affects how the Windows Runtime environment handles memory objects, creating potential pathways for malicious actors to gain unauthorized elevated access to system resources. The flaw exists within the core runtime components that manage application execution and system interactions, making it particularly dangerous as it can be exploited across multiple application contexts and system services. The vulnerability impacts various Windows versions including Windows 10, Windows Server 2016, and Windows Server 2019, with the potential for widespread exploitation across enterprise environments where these systems are deployed. This issue falls under the category of memory corruption vulnerabilities that can lead to privilege escalation, a classification that aligns with CWE-121 which addresses unsafe use of memory allocation functions and CWE-125 which covers out-of-bounds read conditions.
The technical exploitation of this vulnerability occurs when malicious code triggers improper handling of memory objects within the Windows Runtime environment. Attackers can craft specific payloads that manipulate how the runtime processes memory allocations and object references, potentially leading to code execution in kernel mode contexts. The flaw typically manifests when applications or system services interact with Windows Runtime components that fail to properly validate memory operations or enforce appropriate access controls during object lifecycle management. This improper handling can result in attackers gaining SYSTEM-level privileges without proper authentication or authorization, allowing them to execute arbitrary code with the highest possible system permissions. The vulnerability can be leveraged through various attack vectors including malicious applications, compromised web content, or through lateral movement techniques that exploit other initial access points within the network environment.
From an operational perspective, this vulnerability poses significant risks to enterprise security infrastructure as it can be exploited to establish persistent backdoors, exfiltrate sensitive data, or deploy additional malicious payloads. The privilege escalation capability makes it particularly attractive to threat actors seeking to maintain long-term access to compromised systems. Organizations may experience unauthorized access to critical system resources, potential data breaches, and the ability to bypass traditional security controls that rely on standard user privileges. The vulnerability's impact extends beyond individual system compromise as it can be used to facilitate broader network infiltration and lateral movement activities. Security operations teams must consider the potential for this vulnerability to be used in advanced persistent threat campaigns where attackers seek to maintain stealthy access to target environments while avoiding detection mechanisms.
Mitigation strategies for this vulnerability include immediate deployment of Microsoft security patches and updates that address the specific memory handling flaws within Windows Runtime components. Organizations should implement comprehensive monitoring solutions that can detect anomalous privilege escalation activities and memory manipulation patterns. Security configurations should include strict application control policies that limit runtime environment access and enforce proper privilege separation between different system components. Network segmentation and access control measures can help limit the potential impact of successful exploitation attempts. Additionally, regular security assessments and vulnerability scanning should be conducted to identify systems that may be vulnerable to similar memory corruption issues. The mitigation approach aligns with ATT&CK tactics that focus on privilege escalation and persistence, requiring organizations to implement layered defenses that address both the immediate vulnerability and broader threat landscape. Regular security awareness training for administrators and security personnel is also essential to ensure proper incident response procedures are followed when potential exploitation attempts are detected.