What is CVE-2022-24401?

CVE-2022-24401 is a high-severity vulnerability in Etsi Tetra Standard, classified under Reusing a Nonce, Key Pair in Encryption. CVSS score: 8.8/10. Published 2023-10-19.

How severe is CVE-2022-24401?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Etsi Tetra Standard

CVE-2022-24401

Adversary-induced keystream re-use on TETRA air-interface encrypted traffic using any TEA keystream generator. IV generation is based upon several TDMA frame counters, which are frequently broadcast by the infrastructure in an unauthentica…

EPSS: 0.003 (26.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Etsi Tetra Standard — versions all
Midnightblue Tetra\ — versions burst

Weakness classification (CWE)

CWE-323 — Reusing a Nonce, Key Pair in Encryption
CWE-639 — Authorization Bypass Through User-Controlled Key

References

cert@ncsc.nl (related, Vendor Advisory)

Frequently asked questions

What is CVE-2022-24401?: CVE-2022-24401 is a high-severity vulnerability in Etsi Tetra Standard, classified under Reusing a Nonce, Key Pair in Encryption. CVSS score: 8.8/10. Published 2023-10-19.
How severe is CVE-2022-24401?: High severity. CVSS v3 base score is 8.8 out of 10.