CVE intelligence and bounded remediation
CVE-2020-5318 — Dell EMC Isilon OneFS versions 8.1.2, 8.1.0.4, 8.1.0.3, and 8.0.0.7 contain a vulnerability in some configurations
Dell EMC Isilon OneFS versions 8.1.2, 8.1.0.4, 8.1.0.3, and 8.0.0.7 contain a vulnerability in some configurations. An attacker may exploit this vulnerability to gain access to restricted files. The non-RAN HTTP and WebDAV file-serving components have a vulnerability wherein when either are enabled, and Basic Authentication is enabled for either or both components, files are accessible without authentication.
- Severity
- High
- CVSS
- 7.5 (3.1)
- Published
- 2020-02-06
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-285, CWE-863
Affected products
- dell / emc_isilon_onefs / 8.0.0.7
- dell / emc_isilon_onefs / 8.1.0.3
- dell / emc_isilon_onefs / 8.1.0.4
- dell / emc_isilon_onefs / 8.1.2
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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