CVE intelligence and bounded remediation

CVE-2015-3954 — Pifzer Plum A+ Infusion System Firmware security vulnerability

Critical CVSS 9.8

Hospira Plum A+ Infusion System version 13.4 and prior, Plum A+3 Infusion System version 13.6 and prior, and Symbiq Infusion System, version 3.13 and prior give unauthenticated users root privileges on Port 23/TELNET by default. An unauthorized user could issue commands to the pump. Hospira recommends that customers close Port 23/TELNET on the affected devices. Hospira has also released the Plum 360 Infusion System which is not vulnerable to this issue.

Severity
Critical
CVSS
9.8 (3.0)
Published
2019-03-25
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-285

Affected products

  • pifzer / plum_a+_infusion_system_firmware
  • pifzer / plum_a+3_infusion_system_firmware
  • pifzer / symbiq_infusion_system_firmware

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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