CVE-2017-14467

CRITICAL
9.8
CVSS Score
Published: April 5, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 01:06 AM UTC
3 products affected across 2 vendorsMicrologix 1400-b FirmwareAllen-Bradley MicroLogix 1400Micrologix 1400-b

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Severity
CRITICAL9.8
Exploit prediction
EPSS 37%

Description

An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE Description: Live rung edits are able to be made by an unauthenticated user allowing for addition, deletion, or modification of existing ladder logic. Additionally, faults and cpu state modification can be triggered if specific ladder logic is used.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 21.2
rockwellautomation-micrologix-1400 (same device)
Allen Bradley Micrologix 1400 Series B FRN 21.2, Allen Bradley Micrologix 1400 Series B FRN 21.0, Allen Bradley Micrologix 1400 Series B FRN 15

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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