Rockwell Micrologix Improper Access Control (CVE-2017-14472)

critical Tenable OT Security Plugin ID 500214

Synopsis

The remote OT asset is affected by a vulnerability.

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: Any Description:
Requests a specific set of bytes from an undocumented data file and returns the ASCII version of the master password.
This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: Critical

ID: 500214

Version: 1.5

Type: remote

Family: Tenable.ot

Published: 2/7/2022

Updated: 11/30/2023

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2017-14472

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:rockwellautomation:micrologix_1400_b_firmware

Required KB Items: Tenable.ot/Rockwell

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/5/2018

Vulnerability Publication Date: 4/5/2018

Reference Information

CVE: CVE-2017-14472

Detections

Analytics