CVE intelligence and bounded remediation

CVE-2023-34404 — Mercedes-Benz head-unit NTG6 has Ethernet pins on Base Board to connect module CSB

Medium CVSS 4.9

Mercedes-Benz head-unit NTG6 has Ethernet pins on Base Board to connect module CSB. Attacker can connect to these pins and get access to internal network. As a result, by accessing a specific port an attacker can send call request to all registered services in router and achieve command injection vulnerability.

Severity
Medium
CVSS
4.9 (3.1)
Published
2025-02-13
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-284

Affected products

  • mercedes-benz / headunit_ntg6_mercedes-benz_user_experience / 2021

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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

Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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