CVE intelligence and bounded remediation

CVE-2016-8798 — Huawei Usg5500 Firmware security vulnerability

High CVSS 7.8

Huawei USG5500 with software V300R001C00 and V300R001C00 allows attackers to bypass the anti-DDoS module of the USGs to cause a denial of service condition on the backend server.

Severity
High
CVSS
7.8 (2.0)
Published
2017-04-02
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-284

Affected products

  • huawei / usg5500_firmware / v300r001c00
  • huawei / usg5500_firmware / v300r001c10

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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