CVE intelligence and bounded remediation

CVE-2021-41301 — Ecoa Ecs Router Controller-Ecs Firmware security vulnerability

Critical CVSS 9.8

ECOA BAS controller is vulnerable to configuration disclosure when direct object reference is made to the specific files using an HTTP GET request. This will enable the unauthenticated attacker to remotely disclose sensitive information and help her in authentication bypass, privilege escalation and full system access.

Severity
Critical
CVSS
9.8 (3.1)
Published
2021-09-30
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-200, CWE-639

Affected products

  • ecoa / ecs_router_controller-ecs_firmware
  • ecoa / riskbuster_firmware
  • ecoa / riskterminator

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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