CVE-2017-14462
First published: Wed Mar 28 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 (also RUN for some) Description: Allows an attacker to enable SNMP, Modbus, DNP, and any other features in the channel configuration. Also allows attackers to change network parameters, such as IP address, name server, and domain name.
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 the severity of CVE-2017-14462?
The severity of CVE-2017-14462 is critical with a CVSS score of 9.8.
What is the affected software for CVE-2017-14462?
The affected software for CVE-2017-14462 is Rockwellautomation Micrologix 1400 B Firmware version up to 21.2.
How does CVE-2017-14462 exploit the access control vulnerability?
CVE-2017-14462 exploits the access control vulnerability in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before by using a specially crafted packet to execute unauthorized read or write operations, potentially leading to sensitive information disclosure or modification.
How can I fix CVE-2017-14462?
To fix CVE-2017-14462, it is recommended to upgrade to a version of Allen Bradley Micrologix 1400 Series B FRN that is after 21.2, which contains the necessary security patches.
Where can I find more information about CVE-2017-14462?
You can find more information about CVE-2017-14462 at the following link: [Talos Intelligence CVE-2017-14462](https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0443)
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