CVE intelligence and bounded remediation

CVE-2020-1748 — Redhat Wildfly Elytron security vulnerability

High CVSS 7.5

A flaw was found in all supported versions before wildfly-elytron-1.6.8.Final-redhat-00001, where the WildFlySecurityManager checks were bypassed when using custom security managers, resulting in an improper authorization. This flaw leads to information exposure by unauthenticated access to secure resources.

Severity
High
CVSS
7.5 (3.1)
Published
2020-09-16
CISA KEV
Not currently listed
Ecosystem
software/application

Affected products

  • redhat / wildfly_elytron
  • redhat / decision_manager / 7.0
  • redhat / process_automation / 7.0

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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