CRITICAL

CVE-2017-14467

CVSS v3

9.8

CRITICAL

EPSS Score

61.4%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
4/5/2018

Frequently asked questions

What is CVE-2017-14467?

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.

Is CVE-2017-14467 actively exploited?

Active exploitation of CVE-2017-14467 has not been confirmed. The EPSS score is 61.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-14467?

CVE-2017-14467 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2017-14467 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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