What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2017-11401.

What is the severity of CVE-2017-11401?

CVE-2017-11401 has a severity rating of 9.8 (critical).

What is the affected software for CVE-2017-11401?

The affected software for CVE-2017-11401 is Belden Tofino Xenon Security Appliance Firmware versions up to and including 3.1.0.

How can an attacker exploit CVE-2017-11401?

An attacker can exploit CVE-2017-11401 by sending malformed/crafted ModBus packets with improper handling of the mbap.length field to bypass function code filtering.

Are there any references or further information available for CVE-2017-11401?

Yes, you can find more information about CVE-2017-11401 in the following references: [Link 1](https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt) and [Link 2](https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf).

Vulnerability/
CVE-2017-11401

critical

9.8

20/11/2017

3/10/2019

CVE-2017-11401

First published: Mon Nov 20 2017(Updated: )

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. Improper handling of the mbap.length field of ModBus packets in the ModBus DPI filter allows an attacker to send malformed/crafted packets to a protected asset, bypassing function code filtering.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Belden Tofino Xenon Security Appliance Firmware	<=3.1.0
Belden Tofino Xenon Security Appliance

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Frequently Asked Questions

What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2017-11401.
What is the severity of CVE-2017-11401?
CVE-2017-11401 has a severity rating of 9.8 (critical).
What is the affected software for CVE-2017-11401?
The affected software for CVE-2017-11401 is Belden Tofino Xenon Security Appliance Firmware versions up to and including 3.1.0.
How can an attacker exploit CVE-2017-11401?
An attacker can exploit CVE-2017-11401 by sending malformed/crafted ModBus packets with improper handling of the mbap.length field to bypass function code filtering.
Are there any references or further information available for CVE-2017-11401?
Yes, you can find more information about CVE-2017-11401 in the following references: [Link 1](https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt) and [Link 2](https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf).

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version/belden tofino xenon security appliance firmware/3.1.0
canonical/belden tofino xenon security appliance

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