SQL Server Remote Code Execution via Internal Functions
Actively exploited in the wild. Patch or mitigate immediately — don't wait for a maintenance window.
An attacker with a basic user account, remotely over the network, with no user interaction, can fully compromise the system — steal data, tamper with it and take it offline.
A remote code execution vulnerability exists in Microsoft SQL Server when it incorrectly handles processing of internal functions, aka 'Microsoft SQL Server Remote Code Execution Vulnerability'.
Inferred from the weakness type (CWE) and how the flaw is reached — the techniques an attacker would chain to exploit this. Real-world corroboration appears here as threat intel is folded in.
Corroborated threat activity referencing this CVE — with source and confidence, not inference.
Named threat actors and observed ATT&CK techniques appear here as intel feeds are folded in — the ATT&CK chain above stays inferred until then.
Generated by Wavense from the CVE record — an immediate mitigation and the permanent fix.
Restrict the SQL Server service account to the principle of least privilege, ensuring it has only necessary permissions. Implement network firewall rules to limit access to SQL Server ports (e.g., TCP 1433) only from authorized systems and use network segmentation. Proactive monitoring of SQL Server logs for unusual commands, failed login attempts, or unexpected process spawns can help detect exploitation attempts.
The permanent resolution is to apply the specific security updates released by Microsoft for CVE-2019-1068. Administrators should identify all affected SQL Server instances and upgrade them to a patched version as soon as possible. Regular patching cycles should be maintained to address similar vulnerabilities promptly.
An attacker can exploit this vulnerability to achieve remote code execution on the underlying server running Microsoft SQL Server. This grants full control over the database instance, enabling data theft, modification, or deletion, and potentially compromising the entire host system. Business consequences include severe data breaches, service disruption, reputational damage, and regulatory non-compliance.
Other CVEs affecting sql server
A remote code execution vulnerability exists in Microsoft SQL Server Reporting Services when it incorrectly handles page requests, aka 'Microsoft SQL Server Reporting Services Remote Code Execution Vulnerability'.
The TabStrip ActiveX control in the Common Controls in MSCOMCTL.OCX in Microsoft Office 2003 SP3, Office 2003 Web Components SP3, Office 2007 SP2 and SP3, Office 2010 SP1, SQL Server 2000 SP4, SQL Server 2005 SP4, SQL Server 2008 SP2, SP3, R2, R2 SP1, and R2 SP2, Commerce Server 2002 SP4, Commerce Server 2007 SP2, Commerce Server 2009 Gold and R2, Host Integration Server 2004 SP1, Visual FoxPro 8.0 SP1, Visual FoxPro 9.0 SP2, and Visual Basic 6.0 Runtime allows remote attackers to execute arbitrary code via a crafted (1) document or (2) web page that triggers system-state corruption, aka "MSCOMCTL.OCX RCE Vulnerability."
Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.