CVE intelligence and bounded remediation

CVE-2019-16640 — An issue was found in upload.php on the Ruijie EG-2000 series gateway

High CVSS 7.5

An issue was found in upload.php on the Ruijie EG-2000 series gateway. A parameter passed to the class UploadFile is mishandled (%00 and /var/./html are not checked), which can allow an attacker to upload any file to the gateway. This affects EG-2000SE EG_RGOS 11.9 B11P1.

Severity
High
CVSS
7.5 (3.1)
Published
2024-07-16
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-284

Affected products

  • ruijie / eg-2000se_firmware / 11.1(1)b1
  • ruijie / eg-2000se_firmware / 11.9_b11p1

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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