CVE-2017-11402 Security feature bypass in n/a

Critical 9.8 Published Updated

Attackers can bypass firewall protections on Belden Hirschmann Tofino Xenon appliances to access protected assets via crafted OPC traffic.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-11402?

CVE-2017-11402 is a critical vulnerability in n/a, published on 20 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-20

Which versions are affected by CVE-2017-11402?

It affects 1 product.

Products include Belden Tofino Xenon Security Appliance Firmware.

How do I fix CVE-2017-11402?

No fix has been published for CVE-2017-11402 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-11402 being exploited?

There is no known exploitation of CVE-2017-11402 in the wild and no public exploit code.

Sources

Also known as GHSA-g5fp-55mr-fxj5.

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