CVE-2017-11401

Description

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.

9.8

CVSS

Severity: Critical

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.19%

Vendor Advisory belden.com

Affected: n/a n/a

References

Link	Tags
https://www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-2017-14-1v1-1.pdf	vendor advisory
https://github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt	third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-11401?: CVE-2017-11401 has been scored as a critical severity vulnerability.
How to fix CVE-2017-11401?: To fix CVE-2017-11401, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-11401 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2017-11401 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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