| Summary | Z-Wave devices based on Silicon Labs 100, 200, and 300 series chipsets do not support encryption, allowing an attacker within radio range to take control of or cause a denial of service to a vulnerable device. An attacker can also capture and replay Z-Wave traffic. Firmware upgrades cannot directly address this vulnerability as it is an issue with the Z-Wave specification for these legacy chipsets. One way to protect against this vulnerability is to use 500 or 700 series chipsets that support Security 2 (S2) encryption. As examples, the Linear WADWAZ-1 version 3.43 and WAPIRZ-1 version 3.43 (with 300 series chipsets) are vulnerable. |
|---|---|
| Publication Date | Jan. 10, 2022, 11:10 p.m. |
| Registration Date | Jan. 11, 2022, 10:01 a.m. |
| Last Update | Nov. 21, 2024, 2:39 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 : HIGH | |
| Score | 8.3 |
|---|---|
| Vector | AV:A/AC:L/Au:N/C:C/I:C/A:C |
| 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) | 高 |
| 完全性への影響(I) | 高 |
| 可用性への影響(A) | 高 |
| 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:o:linear:wapirz-1:3.43:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:linear:wadwaz-1:3.43:*:*:*:*:*:*:* | |||||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:silabs:100_series_firmware:*:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:silabs:200_series_firmware:*:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:silabs:300_series_firmware:*:*:*:*:*:*:*:* | |||||