CVE intelligence and bounded remediation

CVE-2024-39871 — A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2 SP1)

Medium CVSS 6.3

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.2 SP1). Affected applications do not properly separate the rights to edit device settings and to edit settings for communication relations. This could allow an authenticated attacker with the permission to manage devices to gain access to participant groups that the attacked does not belong to.

Severity
Medium
CVSS
6.3 (3.1)
Published
2024-07-09
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-863

Affected products

  • siemens / sinema_remote_connect_server
  • siemens / sinema_remote_connect_server / 3.2

Showing 2 representative product identities from 3 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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