CVE intelligence and bounded remediation

CVE-2020-5328 — Dell Emc Isilon Onefs security vulnerability

Critical CVSS 9.8

Dell EMC Isilon OneFS versions prior to 8.2.0 contain an unauthorized access vulnerability due to a lack of thorough authorization checks when SyncIQ is licensed, but encrypted syncs are not marked as required. When this happens, loss of control of the cluster can occur.

Severity
Critical
CVSS
9.8 (3.1)
Published
2020-03-06
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-306

Affected products

  • dell / emc_isilon_onefs

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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