CVE intelligence and bounded remediation

CVE-2023-47800 — Natus Neuroworks Eeg security vulnerability

Critical CVSS 9.8

Natus NeuroWorks and SleepWorks before 8.4 GMA3 utilize a default password of xltek for the Microsoft SQL Server service sa account, allowing a threat actor to perform remote code execution, data exfiltration, or other nefarious actions such as tampering with data or destroying/disrupting MSSQL services.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-11-10
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-798

Affected products

  • natus / neuroworks_eeg
  • natus / neuroworks_eeg / 8.4
  • natus / sleepworks
  • natus / sleepworks / 8.4

Matched remediation archetype

Authentication bypass and missing authentication

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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