CVE-2022-24403 De-anonymization attack in TETRA

Medium 4.3 Published Updated

Weakness in TETRA identity encryption allows attackers to recover keys and de-anonymize users using known identity pairs.

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-2022-24403?

CVE-2022-24403 is a medium-severity vulnerability in ETSI TETRA Standard, published on 5 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The TETRA TA61 identity encryption function internally uses a 64-bit value derived exclusively from the SCK (Class 2 networks) or CCK (Class 3 networks). The structure of TA61 allows for efficient recovery of this 64-bit value, allowing an adversary to encrypt or decrypt arbitrary identities given only three known encrypted/unencrypted identity pairs.

Weakness: CWE-327

Which versions are affected by CVE-2022-24403?

It affects 1 product.

Products include Midnightblue Tetra\.

How do I fix CVE-2022-24403?

No fix has been published for CVE-2022-24403 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-24403 being exploited?

There is no known exploitation of CVE-2022-24403 in the wild and no public exploit code.

Sources

Also known as GHSA-pm5f-h2hr-89qr.

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