CVE-2017-11402

Description

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. Design flaws in OPC classic and in custom netfilter modules allow an attacker to remotely activate rules on the firewall and to connect to any TCP port of a protected asset, thus bypassing the firewall. The attack methodology is a crafted OPC dynamic port shift.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory belden.com
Affected: n/a n/a
Published at:
Updated at:

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-2017-11402?
CVE-2017-11402 has been scored as a critical severity vulnerability.
How to fix CVE-2017-11402?
To fix CVE-2017-11402, 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-2017-11402 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-11402 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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