CVE intelligence and bounded remediation

CVE-2020-3360 — Cisco Unified Ip Phone 6901 Firmware security vulnerability

Medium CVSS 5.3

A vulnerability in the Web Access feature of Cisco IP Phones Series 7800 and Series 8800 could allow an unauthenticated, remote attacker to view sensitive information on an affected device. The vulnerability is due to improper access controls on the web-based management interface of an affected device. An attacker could exploit this vulnerability by sending malicious requests to the device, which could allow the attacker to bypass access restrictions. A successful attack could allow the attacker to view sensitive information, including device call logs that contain names, usernames, and phone numbers of users of the device.

Severity
Medium
CVSS
5.3 (3.1)
Published
2020-06-18
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-200, CWE-863

Affected products

  • cisco / unified_ip_phone_6901_firmware
  • cisco / unified_ip_phone_6961_firmware
  • cisco / unified_ip_phone_6945_firmware
  • cisco / unified_ip_phone_6941_firmware
  • cisco / unified_ip_phone_6921_firmware
  • cisco / unified_ip_phone_6911_firmware

Showing 6 representative product identities from 37 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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