CVE-2017-14471
First published: Thu Apr 05 2018(Updated: )
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 or PROG Associated Fault Codes: 0023, 002e, and 0037 Fault Type: Recoverable Description: The STI, EII, and HSC function files contain bits signifying whether or not a fault has occurred. Additionally there is a bit signaling the module to auto start. When these bits are set for any of the three modules and the device is moved into a run state, a fault is triggered.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Rockwellautomation Micrologix 1400 B Firmware | <=21.2 | |
| Rockwellautomation Micrologix 1400 |
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Frequently Asked Questions
What is CVE-2017-14471?
CVE-2017-14471 is an access control vulnerability in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before.
How severe is CVE-2017-14471?
CVE-2017-14471 has a severity rating of 9.8 (critical).
What is the affected software of CVE-2017-14471?
The affected software of CVE-2017-14471 is Rockwellautomation Micrologix 1400 B Firmware version 21.2 and before.
How can CVE-2017-14471 be exploited?
CVE-2017-14471 can be exploited by sending a specially crafted packet that can cause a read or write operation, leading to disclosure of sensitive information or modification of data.
Is Rockwellautomation Micrologix 1400 vulnerable to CVE-2017-14471?
No, Rockwellautomation Micrologix 1400 is not vulnerable to CVE-2017-14471.
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