CVE-2022-24403

De-anonymization attack in TETRA

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Published Dec 5, 2023 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

ETSI

TETRA Standard

affected

Version	Status	Constraints
`TA61`	affected	—

Configuration 1 [-]

cpe:2.3:a:midnightblue:tetra\:burst:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-29295	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.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.131% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://tetraburst.com/

History

No history.

Subscriptions

Midnightblue Tetra\

Weaknesses

CWE-327

Sources

CVE record Updated: Aug 3, 2024, 4:13 AM

Status: PUBLISHED
Assigner: NCSC-NL
Published: Dec 5, 2023, 1:54 PM
Updated: Aug 3, 2024, 4:13 AM
Reserved: Feb 4, 2022, 4:43 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:31 AM

Status: Modified
Published: Dec 5, 2023, 2:15 PM
Modified: Jun 17, 2026, 4:31 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"affected": [{"affectedData": [{"product": "TETRA Standard", "vendor": "ETSI", "versions": [{"status": "affected", "version": "TA61"}]}], "source": "cert@ncsc.nl"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:midnightblue:tetra\\:burst:-:*:*:*:*:*:*:*", "matchCriteriaId": "E47ED5D3-E6C3-419A-9A3B-9F20863B9FDA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "La funci\u00f3n de cifrado de identidad TETRA TA61 utiliza internamente un valor de 64 bits derivado exclusivamente de SCK (redes Clase 2) o CCK (redes Clase 3). La estructura de TA61 permite una recuperaci\u00f3n eficiente de este valor de 64 bits, lo que permite a un adversario cifrar o descifrar identidades arbitrarias con solo tres pares de identidades cifradas/no cifradas conocidas."}], "id": "CVE-2022-24403", "lastModified": "2026-06-17T04:31:46.580", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "cert@ncsc.nl", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-12-05T14:15:07.510", "references": [{"source": "cert@ncsc.nl", "tags": ["Third Party Advisory"], "url": "https://tetraburst.com/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://tetraburst.com/"}], "sourceIdentifier": "cert@ncsc.nl", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-327"}], "source": "cert@ncsc.nl", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-327"}], "source": "nvd@nist.gov", "type": "Primary"}]}