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CERTFR-2021-AVI-405
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans le protocole Bluetooth. Elles permettent à un attaquant de provoquer un contournement de la politique de sécurité et une atteinte à la confidentialité des données.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Bluetooth Core Specification v1.0B \u00e0 v5.2",
"product": {
"name": "Core",
"vendor": {
"name": "Owncloud",
"scada": false
}
}
},
{
"description": "Bluetooth Mesh Profile v1.0 \u00e0 v1.0.1",
"product": {
"name": "N/A",
"vendor": {
"name": "N/A",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2020-26557",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26557"
},
{
"name": "CVE-2020-26559",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26559"
},
{
"name": "CVE-2020-26556",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26556"
},
{
"name": "CVE-2020-26558",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26558"
},
{
"name": "CVE-2020-26560",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26560"
},
{
"name": "CVE-2020-26555",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26555"
}
],
"links": [],
"reference": "CERTFR-2021-AVI-405",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-05-26T00:00:00.000000"
}
],
"risks": [
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le protocole\nBluetooth. Elles permettent \u00e0 un attaquant de provoquer un contournement\nde la politique de s\u00e9curit\u00e9 et une atteinte \u00e0 la confidentialit\u00e9 des\ndonn\u00e9es.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le protocole Bluetooth",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Bluetooth SIG du 24 mai 2021",
"url": "https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/"
}
]
}
CVE-2020-26560 (GCVE-0-2020-26560)
Vulnerability from cvelistv5 – Published: 2021-05-24 17:06 – Updated: 2025-11-04 19:12
VLAI?
EPSS
Summary
Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, reflecting the authentication evidence from a Provisioner, to complete authentication without possessing the AuthValue, and potentially acquire a NetKey and AppKey.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2020-26559 (GCVE-0-2020-26559)
Vulnerability from cvelistv5 – Published: 2021-05-24 17:13 – Updated: 2025-11-04 19:12
VLAI?
EPSS
Summary
Bluetooth Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (participating in the provisioning protocol) to identify the AuthValue used given the Provisioner’s public key, and the confirmation number and nonce provided by the provisioning device. This could permit a device without the AuthValue to complete provisioning without brute-forcing the AuthValue.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2020-26556 (GCVE-0-2020-26556)
Vulnerability from cvelistv5 – Published: 2021-05-24 17:34 – Updated: 2024-08-04 15:56
VLAI?
EPSS
Summary
Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
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CVE-2020-26555 (GCVE-0-2020-26555)
Vulnerability from cvelistv5 – Published: 2021-05-24 17:41 – Updated: 2025-11-04 19:12
VLAI?
EPSS
Summary
Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2020-26558 (GCVE-0-2020-26558)
Vulnerability from cvelistv5 – Published: 2021-05-24 17:22 – Updated: 2025-11-04 19:12
VLAI?
EPSS
Summary
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-26557 (GCVE-0-2020-26557)
Vulnerability from cvelistv5 – Published: 2021-05-24 17:28 – Updated: 2025-11-04 19:12
VLAI?
EPSS
Summary
Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (without possession of the AuthValue used in the provisioning protocol) to determine the AuthValue via a brute-force attack (unless the AuthValue is sufficiently random and changed each time).
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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