CVE intelligence and bounded remediation

CVE-2019-15990 — Cisco Rv016 Multi-Wan Vpn Firmware security vulnerability

Medium CVSS 5.3

A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an unauthenticated, remote attacker to view information displayed in the web-based management interface. The vulnerability is due to improper authorization of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to view information displayed in the web-based management interface without authentication.

Severity
Medium
CVSS
5.3 (3.1)
Published
2019-11-26
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-285

Affected products

  • cisco / rv016_multi-wan_vpn_firmware
  • cisco / rv042_dual_wan_vpn_firmware
  • cisco / rv042g_dual_gigabit_wan_vpn_firmware
  • cisco / rv082_dual_wan_vpn_firmware

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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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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