CVE-2020-0607 in Windows
Summary
by MITRE
An information disclosure vulnerability exists in the way that Microsoft Graphics Components handle objects in memory, aka 'Microsoft Graphics Components Information Disclosure Vulnerability'.
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Analysis
by VulDB Data Team • 03/20/2024
The vulnerability identified as CVE-2020-0607 represents a critical information disclosure flaw within Microsoft Graphics Components that affects multiple Windows operating systems including Windows 10, Windows Server 2016, and Windows Server 2019. This vulnerability stems from improper handling of memory objects within the graphics processing subsystem, specifically impacting how the system manages and processes graphical components during normal operation. The flaw manifests when the graphics components fail to properly validate memory access patterns, leading to potential exposure of sensitive data that should remain protected within system memory boundaries. This issue falls under the broader category of memory safety vulnerabilities and aligns with CWE-248, which addresses improper exception handling, and CWE-125, which covers out-of-bounds read conditions. The vulnerability is particularly concerning because it operates at the kernel level within graphics processing components, making it difficult to detect and exploit through conventional means.
The technical mechanism behind this information disclosure vulnerability involves the graphics components' interaction with memory management systems when processing graphical objects and rendering operations. When applications utilize graphics APIs such as Direct3D or GDI+, the underlying graphics components may not properly enforce memory access controls during object handling, potentially allowing attackers to read memory contents that should be restricted. This occurs due to insufficient bounds checking and validation mechanisms within the graphics driver code, particularly when dealing with malformed or improperly structured graphical data. The vulnerability can be triggered through various attack vectors including malicious PDF documents, image files, or web content that when processed by the graphics components, cause memory corruption patterns that reveal sensitive information. The flaw specifically impacts the way graphics components manage memory allocation and deallocation, creating opportunities for information leakage that could include system credentials, application data, or other confidential information stored in memory.
The operational impact of CVE-2020-0607 extends beyond simple data exposure, as it represents a significant threat to system security and confidentiality. Attackers who successfully exploit this vulnerability could potentially extract sensitive information from system memory, including cryptographic keys, user credentials, or other confidential data that resides in memory during graphics processing operations. This information disclosure capability can serve as a stepping stone for more sophisticated attacks, potentially enabling privilege escalation or lateral movement within a compromised network. The vulnerability is particularly dangerous because it operates silently in the background, making detection difficult for traditional security monitoring systems. Organizations running affected systems face increased risk of data breaches and unauthorized access, especially in environments where graphics-intensive applications are commonly used. The vulnerability affects both client and server environments, meaning that enterprise networks with Windows servers running graphics-intensive applications are equally at risk. According to ATT&CK framework, this vulnerability maps to T1059.007 for Windows Command Shell and T1003.001 for OS Credential Dumping, as it can be leveraged to extract sensitive information that could be used for further compromise.
Mitigation strategies for CVE-2020-0607 require immediate implementation of Microsoft security patches and updates, as the primary fix involves updating the affected graphics components to versions that properly handle memory objects and prevent unauthorized information disclosure. Organizations should prioritize patch deployment across all affected Windows systems, particularly those running server environments or handling sensitive data. Network administrators should implement additional monitoring controls to detect unusual graphics processing patterns that might indicate exploitation attempts. Security teams should also consider implementing memory protection mechanisms such as Data Execution Prevention (DEP) and Address Space Layout Randomization (ASLR) to reduce the effectiveness of potential exploitation attempts. Additional defensive measures include restricting user permissions for graphics-intensive applications, implementing application whitelisting policies, and conducting regular vulnerability assessments to identify systems that may be running outdated graphics components. Organizations should also review their incident response procedures to ensure readiness for potential information disclosure events that could result from exploitation of this vulnerability. The mitigation approach should follow the principle of least privilege and layered defense, combining both preventive measures and detection capabilities to protect against this and similar memory-related vulnerabilities.