CVE intelligence and bounded remediation

CVE-2023-20261 — Cisco Catalyst Sd-Wan Manager security vulnerability

Medium CVSS 6.5

A vulnerability in the web UI of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to retrieve arbitrary files from an affected system. This vulnerability is due to improper validation of parameters that are sent to the web UI. An attacker could exploit this vulnerability by logging in to Cisco Catalyst SD-WAN Manager and issuing crafted requests using the web UI. A successful exploit could allow the attacker to obtain arbitrary files from the underlying Linux file system of an affected system. To exploit this vulnerability, the attacker must be an authenticated user.

Severity
Medium
CVSS
6.5 (3.1)
Published
2023-10-18
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-284

Affected products

  • cisco / catalyst_sd-wan_manager / 17.2.4
  • cisco / catalyst_sd-wan_manager / 17.2.5
  • cisco / catalyst_sd-wan_manager / 17.2.6
  • cisco / catalyst_sd-wan_manager / 17.2.7
  • cisco / catalyst_sd-wan_manager / 17.2.8
  • cisco / catalyst_sd-wan_manager / 17.2.9

Showing 6 representative product identities from 99 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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