CVE-2017-11400 Security feature bypass in n/a

Medium 6.8 Published Updated

Local attackers can bypass firmware signature checks to install malicious kernel and file system updates on Belden Hirschmann Tofino Xenon appliances.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-11400?

CVE-2017-11400 is a medium-severity vulnerability in n/a, published on 20 Nov 2017. It can only be exploited from the same machine or local network, 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. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. This occurs because the appliance_config file is signed but the .tar.sec file is unsigned.

Weakness: CWE-347

Which versions are affected by CVE-2017-11400?

It affects 1 product.

Products include Belden Tofino Xenon Security Appliance Firmware.

How do I fix CVE-2017-11400?

No fix has been published for CVE-2017-11400 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-11400 being exploited?

There is no known exploitation of CVE-2017-11400 in the wild and no public exploit code.

Sources

Also known as GHSA-mrc4-5458-65m9.

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