CVE-2019-0579 in Windows
Summary
by MITRE
A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory, aka "Jet Database Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers. This CVE ID is unique from CVE-2019-0538, CVE-2019-0575, CVE-2019-0576, CVE-2019-0577, CVE-2019-0578, CVE-2019-0580, CVE-2019-0581, CVE-2019-0582, CVE-2019-0583, CVE-2019-0584.
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Analysis
by VulDB Data Team • 07/14/2024
The vulnerability described in CVE-2019-0579 represents a critical remote code execution flaw within the Windows Jet Database Engine component that forms part of Microsoft's database infrastructure. This issue stems from improper handling of objects in memory during database operations, creating a pathway for malicious actors to execute arbitrary code on affected systems. The Jet Database Engine serves as the foundation for various Microsoft applications including Access, Outlook, and numerous enterprise solutions, making this vulnerability particularly dangerous as it could impact a wide range of software environments. The vulnerability affects multiple Windows operating system versions spanning from Windows 7 through Windows 10 Servers, indicating a broad attack surface that extends across different generations of Microsoft's operating systems. The flaw specifically manifests when the engine processes database objects in memory, suggesting that any application utilizing Jet database functionality could potentially be exploited if it processes untrusted database content.
The technical nature of this vulnerability aligns with common software security principles where memory corruption issues create opportunities for attackers to manipulate program execution flow. According to CWE classification, this vulnerability falls under CWE-121, which describes heap-based buffer overflow conditions, and potentially CWE-125, which covers out-of-bounds read scenarios. The memory handling flaw occurs when the Jet Database Engine fails to properly validate or sanitize database objects during processing, allowing attackers to craft malicious database files or content that, when processed by the engine, triggers unintended code execution. This type of vulnerability typically requires attackers to have the ability to influence database content or access to database files that will be processed by affected applications. The attack vector is remote, meaning that exploitation can occur without local system access, making the vulnerability particularly concerning for enterprise environments where database files may be accessed across network boundaries.
The operational impact of CVE-2019-0579 extends far beyond simple system compromise, as it provides attackers with the capability to establish persistent access to affected systems and potentially escalate privileges. When exploited successfully, this vulnerability could enable attackers to execute malicious code with the privileges of the affected application, which may include system-level access depending on how the database engine is configured and utilized. The vulnerability's presence in both client and server operating systems creates multiple potential entry points for attackers, including desktop environments where database files might be opened by users, and server environments where database services are actively processing user data. Organizations utilizing Microsoft Office applications, database servers, or any system that relies on Jet database functionality face significant risk from this vulnerability. The fact that this vulnerability affects Windows Server 2008, 2012, 2016, and 2019 platforms means that enterprise environments with legacy systems are particularly vulnerable, as these older operating systems may not receive regular updates or patches.
Mitigation strategies for CVE-2019-0579 should focus on immediate patch deployment as the primary defense mechanism, with Microsoft releasing security updates to address the memory handling flaws in the Jet Database Engine. Organizations should also implement network segmentation and access controls to limit exposure of database systems to untrusted networks or users, particularly when database files are processed automatically by applications. Application whitelisting and strict file validation controls can help prevent the execution of malicious database content, while regular monitoring of system logs for unusual database access patterns or unexpected code execution can aid in early detection of exploitation attempts. From an ATT&CK framework perspective, this vulnerability maps to techniques involving remote code execution and privilege escalation, with potential use of T1059 for command execution and T1068 for privilege escalation. System administrators should also consider disabling unnecessary database functionality and ensuring that database files are properly sanitized before processing, particularly in environments where database content originates from external sources or untrusted parties. The vulnerability's classification as a remote code execution issue places it in the high-risk category for enterprise security teams, requiring immediate attention and comprehensive remediation strategies to protect against potential exploitation.