| 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. |
|---|---|
| Publication Date | May 25, 2021, 3:15 a.m. |
| Registration Date | May 25, 2021, 10 a.m. |
| Last Update | Nov. 21, 2024, 2:20 p.m. |
| CVSS3.1 : MEDIUM | |
| スコア | 4.2 |
|---|---|
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
| 攻撃元区分(AV) | 隣接 |
| 攻撃条件の複雑さ(AC) | 高 |
| 攻撃に必要な特権レベル(PR) | 不要 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | なし |
| CVSS2.0 : MEDIUM | |
| Score | 4.3 |
|---|---|
| Vector | AV:A/AC:M/Au:N/C:P/I:P/A:N |
| 攻撃元区分(AV) | 隣接 |
| 攻撃条件の複雑さ(AC) | 中 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | なし |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:* | 2.1 | 5.2 | |||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | |||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.13 | ||||
| Configuration5 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ax210_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ax210:-:*:*:*:*:*:*:* | ||||
| Configuration6 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ax201_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ax201:-:*:*:*:*:*:*:* | ||||
| Configuration7 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ax200_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ax200:-:*:*:*:*:*:*:* | ||||
| Configuration8 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_9560_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_9560:-:*:*:*:*:*:*:* | ||||
| Configuration9 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_9462_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_9462:-:*:*:*:*:*:*:* | ||||
| Configuration10 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_9461_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_9461:-:*:*:*:*:*:*:* | ||||
| Configuration11 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_9260_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_9260:-:*:*:*:*:*:*:* | ||||
| Configuration12 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_8265_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_8265:-:*:*:*:*:*:*:* | ||||
| Configuration13 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_8260_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_8260:-:*:*:*:*:*:*:* | ||||
| Configuration14 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_3168_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_3168:-:*:*:*:*:*:*:* | ||||
| Configuration15 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_7265_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_7265:-:*:*:*:*:*:*:* | ||||
| Configuration16 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_3165_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_3165:-:*:*:*:*:*:*:* | ||||
| Configuration17 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ax1675_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ax1675:-:*:*:*:*:*:*:* | ||||
| Configuration18 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ax1650_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ax1650:-:*:*:*:*:*:*:* | ||||
| Configuration19 | or higher | or less | more than | less than | |
| cpe:2.3:o:intel:ac_1550_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:intel:ac_1550:-:*:*:*:*:*:*:* | ||||
| Title | Bluetooth Core Specification における認証に関する脆弱性 |
|---|---|
| Summary | Bluetooth Core Specification には、認証に関する脆弱性が存在します。 |
| Possible impacts | 情報を取得される、および情報を改ざんされる可能性があります。 |
| Solution | ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date | May 24, 2021, midnight |
| Registration Date | Feb. 8, 2022, 4:08 p.m. |
| Last Update | Feb. 8, 2022, 4:08 p.m. |
| Fedora Project |
| Fedora |
| Bluetooth SIG, Inc. |
| Bluetooth Core Specification 2.1 から 5.2 |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2022年02月08日] 掲載 |
Feb. 8, 2022, 4:08 p.m. |