CVE intelligence and bounded remediation

CVE-2021-22741 — Schneider-Electric Clearscada security vulnerability

Medium CVSS 6.7

Use of Password Hash with Insufficient Computational Effort vulnerability exists in ClearSCADA (all versions), EcoStruxure Geo SCADA Expert 2019 (all versions), and EcoStruxure Geo SCADA Expert 2020 (V83.7742.1 and prior), which could cause the revealing of account credentials when server database files are available. Exposure of these files to an attacker can make the system vulnerable to password decryption attacks. Note that “.sde” configuration export files do not contain user account password hashes.

Severity
Medium
CVSS
6.7 (3.1)
Published
2021-05-26
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-916

Affected products

  • schneider-electric / clearscada
  • schneider-electric / ecostruxure_geo_scada_expert_2019
  • schneider-electric / ecostruxure_geo_scada_expert_2020

Matched remediation archetype

General vulnerability remediation

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Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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