CVE intelligence and bounded remediation

CVE-2021-41543 — Siemens Climatix Pol909 Firmware security vulnerability

Medium CVSS 6.5

A vulnerability has been identified in Climatix POL909 (AWB module) (All versions < V11.44), Climatix POL909 (AWM module) (All versions < V11.36). The handling of log files in the web application of affected devices contains an information disclosure vulnerability which could allow logged in users to access sensitive files.

Severity
Medium
CVSS
6.5 (3.1)
Published
2022-03-08
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-284, CWE-532

Affected products

  • siemens / climatix_pol909_firmware

Showing 1 representative product identities from 2 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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