| Summary | An issue was discovered in myStrom WiFi Switch V1 before 2.66, WiFi Switch V2 before 3.80, WiFi Switch EU before 3.80, WiFi Bulb before 2.58, WiFi LED Strip before 3.80, WiFi Button before 2.73, and WiFi Button Plus before 2.73. The cloud API had a hidden parameter, which allowed an authenticated user to reconfigure the server URL for a device registered to their account. In combination with an insecure device registration vulnerability, this allowed an attacker to reconfigure a maliciously registered device to their own rogue replica of the myStrom API and issue commands to the device, including firmware update commands. |
|---|---|
| Publication Date | Aug. 31, 2018, 2:29 a.m. |
| Registration Date | March 1, 2021, 6:59 p.m. |
| Last Update | Nov. 21, 2024, 12:50 p.m. |
| CVSS3.0 : HIGH | |
| スコア | 8.8 |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 低 |
| 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 | 6.5 |
|---|---|
| Vector | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃前の認証要否(Au) | 単一 |
| 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 |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:* | 2.66 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:mystrom:wifi_switch:v1:*:*:*:*:*:*:* | ||||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:mystrom:wifi_switch_firmware:*:*:*:*:*:*:*:* | 3.80 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:mystrom:wifi_switch:v2:*:*:*:*:*:*:* | ||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:mystrom:wifi_button_plus_firmware:*:*:*:*:*:*:*:* | 2.73 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:mystrom:wifi_button_plus:-:*:*:*:*:*:*:* | ||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:o:mystrom:wifi_button_firmware:*:*:*:*:*:*:*:* | 2.73 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:mystrom:wifi_button:-:*:*:*:*:*:*:* | ||||
| Configuration5 | or higher | or less | more than | less than | |
| cpe:2.3:o:mystrom:wifi_switch_eu_firmware:*:*:*:*:*:*:*:* | 3.80 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:mystrom:wifi_switch_eu:-:*:*:*:*:*:*:* | ||||
| Configuration6 | or higher | or less | more than | less than | |
| cpe:2.3:o:mystrom:wifi_bulb_firmware:*:*:*:*:*:*:*:* | 2.58 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:mystrom:wifi_bulb:-:*:*:*:*:*:*:* | ||||
| Configuration7 | or higher | or less | more than | less than | |
| cpe:2.3:o:mystrom:wifi_led_strip_firmware:*:*:*:*:*:*:*:* | 3.80 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:mystrom:wifi_led_strip:-:*:*:*:*:*:*:* | ||||
| Title | 複数の myStrom WiFi Switch 製品における認可・権限・アクセス制御に関する脆弱性 |
|---|---|
| Summary | 複数の myStrom WiFi Switch 製品には、認可・権限・アクセス制御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 | Aug. 29, 2018, midnight |
| Registration Date | Dec. 7, 2018, 6:08 p.m. |
| Last Update | Dec. 7, 2018, 6:08 p.m. |
| myStrom AG |
| myStrom WiFi Bulb ファームウェア 2.58 未満 |
| myStrom WiFi Button plus ファームウェア 2.73 未満 |
| myStrom WiFi Button ファームウェア 2.73 未満 |
| myStrom WiFi Led Strip ファームウェア 3.80 未満 |
| myStrom WiFi Switch EU ファームウェア 3.80 未満 |
| myStrom WiFi Switch ファームウェア V1 2.66 未満 |
| myStrom WiFi Switch ファームウェア V2 3.80 未満 |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2018年12月07日] 掲載 |
Dec. 7, 2018, 6:08 p.m. |