CVE-2019-19194
| Summary |
The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices installs a zero long term key (LTK) if an out-of-order link-layer encryption request is received during Secure Connections pairing. An attacker in radio range can have arbitrary read/write access to protected GATT service data, cause a device crash, or possibly control a device's function by establishing an encrypted session with the zero LTK.
|
| Publication Date |
Feb. 13, 2020, 12:15 a.m. |
| Registration Date |
Jan. 26, 2021, 11:41 a.m. |
| Last Update |
Nov. 21, 2024, 1:34 p.m. |
|
CVSS3.1 : HIGH
|
| スコア |
8.8
|
| Vector |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) |
隣接 |
| 攻撃条件の複雑さ(AC) |
低 |
| 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) |
高 |
| 完全性への影響(I) |
高 |
| 可用性への影響(A) |
高 |
|
CVSS2.0 : MEDIUM
|
| Score |
5.8
|
| Vector |
AV:A/AC:L/Au:N/C:P/I:P/A:P |
| 攻撃元区分(AV) |
隣接 |
| 攻撃条件の複雑さ(AC) |
低 |
| 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) |
低 |
| Get all privileges. |
いいえ
|
| Get user privileges |
いいえ
|
| Get other privileges |
いいえ
|
| User operation required |
いいえ
|
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:* |
|
3.4.0 |
|
|
| execution environment |
| 1 |
cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:* |
| Configuration2 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:* |
|
3.3 |
|
|
| execution environment |
| 1 |
cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:* |
| Configuration3 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:* |
|
3.4.0 |
|
|
| execution environment |
| 1 |
cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:* |
| Configuration4 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:* |
|
3.4.0 |
|
|
| execution environment |
| 1 |
cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:* |
| Configuration5 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:* |
|
1.3.0 |
|
|
| execution environment |
| 1 |
cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:* |
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
Telink Semiconductor BLE SDK の 複数の TLSR 製品における不正な認証に関する脆弱性
| Title |
Telink Semiconductor BLE SDK の 複数の TLSR 製品における不正な認証に関する脆弱性
|
| Summary |
Telink Semiconductor BLE SDK の TLSR8x5x、TLSR823x、TLSR826x には、不正な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、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution |
ベンダ情報および参考情報を参照して適切な対策を実施してください。 |
| Publication Date |
Nov. 21, 2019, midnight |
| Registration Date |
March 9, 2020, 11:48 a.m. |
| Last Update |
March 27, 2020, 1:39 p.m. |
Affected System
| Telink |
|
TLSR8232 BLE SDK 1.3.0 まで
|
|
TLSR8251 BLE SDK 3.4.0 まで
|
|
TLSR8253 BLE SDK 3.4.0 まで
|
|
TLSR8258 BLE SDK 3.4.0 まで
|
|
TLSR8269 BLE SDK 3.3 まで
|
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
その他
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2020年03月09日]
掲載 |
March 9, 2020, 11:48 a.m. |
| 2 |
[2020年03月27日]
参考情報：ICS-CERT ALERT (ICS-ALERT-20-063-01) を追加 |
March 27, 2020, 10:38 a.m. |