CVE intelligence and bounded remediation

CVE-2019-18827 — On Barco ClickShare Button R9861500D01 devices (before firmware version 1.9.0) JTAG access is disabled after ROM code execution

Medium CVSS 5.9

On Barco ClickShare Button R9861500D01 devices (before firmware version 1.9.0) JTAG access is disabled after ROM code execution. This means that JTAG access is possible when the system is running code from ROM before handing control over to embedded firmware.

Severity
Medium
CVSS
5.9 (3.1)
Published
2019-12-16
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-285, CWE-362

Affected products

  • barco / clickshare_cs-100_firmware
  • barco / clickshare_cse-200_firmware
  • barco / clickshare_cse-200+_firmware
  • barco / clickshare_cse-800_firmware

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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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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