External risk intelligence

Microsoft SQL Server Privilege Escalation Vulnerability.

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2024-37980

Microsoft SQL Server is a database management system typically deployed within internal network segments protected by firewalls. While it is network-accessible in many environments, it is rarely exposed directly to the public internet by design, as it is intended for application-to-database communication behind an application tier.

Microsoft Sql Server 2016

13.0.6300.2 to before 13.0.6445.113.0.7000.253 to before 13.0.7040.114.0.1000.169 to before 14.0.2060.114.0.3006.16 to before 14.0.3475.115.0.2000.5 to before 15.0.2120.115.0.4003.23 to b...

Halo Surface Signal: 2 out of 5 — less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory highlights a critical vulnerability in Microsoft SQL Server that could allow unauthorized individuals to gain elevated privileges within affected systems. The issue is network-exploitable without requiring user interaction, meaning it could be leveraged remotely. The primary concern is to confirm if our deployment of Microsoft SQL Server is within the scope of this vulnerability and to assess any potential exposure.

Privilege escalation flaw in SQL Server.
Critical flaw enables remote system access.
Confirm relevance and assess exposure.

Attack Path

How an attacker could exploit the issue

Attackers can remotely access Microsoft SQL Server without authentication and exploit a vulnerability to gain elevated privileges. This could allow them to take control of the server.

No authentication required to attack.
Vulnerability is triggered remotely.
High risk of system takeover.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an attacker with network access but no prior privileges to gain unauthorized elevated access to Microsoft SQL Server. This could lead to the compromise of sensitive data stored within the database and potentially impact the availability and integrity of the SQL Server service itself.

Database access and control.
Network access to the server.
Data compromise and service disruption.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in Microsoft SQL Server impacts database administration and the teams responsible for the applications that rely on them. The first step is to locate all instances of the affected SQL Server versions, determine their exposure and business criticality, and identify the accountable system owner. Planning for remediation should then be prioritized based on these findings.

Database administrators own this issue.
Verify SQL Server network reachability and criticality.
Plan remediation based on identified risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Microsoft SQL Server?

Microsoft SQL Server is a relational database management system designed to store and manage data for applications. It acts as the backend engine for various business functions, processing queries and transactions. Organizations typically deploy these servers to host critical databases, ranging from small internal tools to large-scale enterprise applications that require robust data handling and security features.

What does CVE-2024-37980 mean?

This CVE describes an Elevation of Privilege vulnerability, categorized as CWE-269 (Improper Privilege Management). It means the software does not correctly restrict the actions a user can perform. An attacker can exploit this weakness to gain higher-level permissions than they are entitled to, potentially allowing them to bypass security controls and assume unauthorized control over the SQL Server instance.

How can an attacker trigger this vulnerability?

The vulnerability is triggered by sending specially crafted requests over a network. Importantly, the attacker does not need an existing account or password on the server to initiate the exploit. It does not require any action from a legitimate user, such as clicking a link or opening a file; the interaction occurs directly between the attacker's system and the target SQL Server.

Is my server at risk?

While the vulnerability is network-exploitable, Halo Surface Signal notes that Microsoft SQL Server is typically hosted behind firewalls or within internal network segments for application use. If your database is directly exposed to the public internet, it is at higher risk. If it is kept internal and accessible only by trusted application tiers, the practical path for an attacker is significantly more difficult.

What should I do to respond to CVE-2024-37980?

Begin by auditing your environment to identify all active instances of the affected SQL Server versions. Verify which of these instances are reachable over the network and determine their business criticality. Once mapped, coordinate with system owners to prioritize applying the necessary vendor updates, as installing the provided patches is the standard way to resolve the underlying permission flaw.

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2024-37980

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.