CVE-2020-26933 Security feature bypass in n/a

High 7.2 Published Updated

Improper initialization during non-orderly shutdown allows bypassing dictionary attack protections in TPM firmware.

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

What is CVE-2020-26933?

CVE-2020-26933 is a high-severity vulnerability in n/a, published on 18 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Trusted Computing Group (TCG) Trusted Platform Module Library Family 2.0 Library Specification Revisions 1.38 through 1.59 has Incorrect Access Control during a non-orderly TPM shut-down that uses USE_DA_USED. Improper initialization of this shut-down may result in susceptibility to a dictionary attack.

Weakness: CWE-665

Which versions are affected by CVE-2020-26933?

It affects 1 product.

Products include Trustedcomputinggroup Trusted Platform Module.

How do I fix CVE-2020-26933?

No fix has been published for CVE-2020-26933 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-26933 being exploited?

There is no known exploitation of CVE-2020-26933 in the wild and no public exploit code.

Sources

Also known as GHSA-988w-p627-h6w6.

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