CVE-2019-0853 in Windows
Summary
by MITRE
A remote code execution vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in the memory, aka 'GDI+ Remote Code Execution Vulnerability'.
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Analysis
by VulDB Data Team • 07/12/2024
The vulnerability identified as CVE-2019-0853 represents a critical remote code execution flaw within the Windows Graphics Device Interface GDI+ component. This issue stems from improper handling of objects in memory during graphics processing operations, creating a pathway for malicious actors to execute arbitrary code on affected systems. The vulnerability specifically affects Windows operating systems and has been classified under the Common Weakness Enumeration as CWE-121, which describes heap-based buffer overflow conditions that occur when a program writes past the end of a buffer allocated on the heap. The flaw exists in the GDI+ graphics subsystem that processes various image formats and graphics operations, making it particularly dangerous as it can be triggered through legitimate graphics processing functions.
The technical exploitation of this vulnerability occurs when a specially crafted graphics object is processed by the GDI+ component, leading to memory corruption that allows attackers to overwrite critical memory locations. This memory corruption can be leveraged to execute malicious code with the privileges of the targeted user, potentially enabling full system compromise. Attackers can trigger this vulnerability through various means including email attachments containing malicious images, web downloads, or any other method that causes the Windows system to process a specially crafted graphics file. The vulnerability is particularly concerning because it can be exploited remotely without user interaction in certain scenarios, making it a significant threat to enterprise environments where users may inadvertently encounter malicious content.
From an operational impact perspective, this vulnerability poses severe risks to organizations running affected Windows versions, as it provides attackers with a powerful vector for system compromise. The attack surface is broad since GDI+ is used extensively throughout Windows applications and services for graphics rendering operations. The vulnerability can be exploited in both user-mode and kernel-mode contexts, depending on the specific attack scenario and target system configuration. Security researchers have noted that exploitation often requires specific conditions to be met, including the presence of certain graphics processing functions and the successful manipulation of memory layout. The ATT&CK framework categorizes this vulnerability under the T1059.007 technique for Windows Command Shell, as successful exploitation typically results in the execution of malicious commands through compromised system processes. Organizations may experience significant operational disruption if this vulnerability is exploited, including potential data breaches, system compromise, and loss of business continuity.
Mitigation strategies for CVE-2019-0853 should include immediate installation of Microsoft security updates, which address the underlying memory handling issues in the GDI+ component. System administrators should implement network segmentation and application whitelisting policies to limit the execution of potentially malicious graphics files. Additional protective measures include disabling unnecessary graphics processing capabilities, monitoring for suspicious graphics file processing activities, and implementing robust endpoint detection and response solutions. The vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates how graphics processing components can serve as attack vectors in modern cybersecurity threats. Organizations should also consider implementing sandboxing techniques for processing untrusted graphics content and establishing incident response procedures specifically tailored to handle remote code execution vulnerabilities in graphics processing subsystems.