CVE intelligence and bounded remediation

CVE-2020-24674 — In S+ Operations and S+ Historian, not all client commands correctly check user permission as expected

High CVSS 9

In S+ Operations and S+ Historian, not all client commands correctly check user permission as expected. Authenticated but Unauthorized remote users could execute a Denial-of-Service (DoS) attack, execute arbitrary code, or obtain more privilege than intended on the machines.

Severity
High
CVSS
9 (2.0)
Published
2020-12-22
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-285, CWE-863

Affected products

  • abb / symphony_+_historian / 3.0
  • abb / symphony_+_historian / 3.1
  • abb / symphony_+_operations / 1.1
  • abb / symphony_+_operations / 2.0
  • abb / symphony_+_operations / 2.1
  • abb / symphony_+_operations / 3.0

Showing 6 representative product identities from 10 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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