CVE-2021-27941
CVSS V2 Low 2.1
CVSS V3 Medium 4.6
Description
Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.
Overview
- CVE ID
- CVE-2021-27941
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-05-06T21:15:07
- Last Modified Date
- 2022-07-12T17:42:04
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:iphone_os:*:* | 1 | OR | 4.9.1 | |
| cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:android:*:* | 1 | OR | 4.9.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- PHYSICAL
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 4.6
- Base Severity
- MEDIUM
- Exploitability Score
- 0.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/salgio/eWeLink-QR-Code | Third Party Advisory |
| https://apps.apple.com/us/app/ewelink-smart-home/id1035163158 | Product Third Party Advisory |
| https://play.google.com/store/apps/details?id=com.coolkit&hl=en_US | Product Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-27941 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27941 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:16:07 | Added to TrackCVE | |||
| 2022-12-05 01:41:06 | 2021-05-06T21:15Z | 2021-05-06T21:15:07 | CVE Published Date | updated |
| 2022-12-05 01:41:06 | 2022-07-12T17:42:04 | CVE Modified Date | updated | |
| 2022-12-05 01:41:06 | Analyzed | Vulnerability Status | updated |