CVE-2020-27220
CVSS V2 High 9
CVSS V3 High 8.8
Description
The Eclipse Hono AMQP and MQTT protocol adapters do not check whether an authenticated gateway device is authorized to receive command & control messages when it has subscribed only to commands for a specific device. The missing check involves verifying that the command target device is configured giving permission for the gateway device to act on its behalf. This means an authenticated device of a certain tenant, notably also a non-gateway device acting like a gateway, may receive command & control messages targeted at a different device of the same tenant without corresponding permissions getting checked.
Overview
- CVE ID
- CVE-2020-27220
- Assigner
- emo@eclipse.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-01-14T23:15:13
- Last Modified Date
- 2021-01-22T18:34:34
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:eclipse:hono:*:*:*:*:*:*:*:* | 1 | OR | 1.4.0 | 1.4.4 |
| cpe:2.3:a:eclipse:hono:1.5.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 9
- Severity
- HIGH
- Exploitability Score
- 8
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=569856 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-27220 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27220 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:26:29 | Added to TrackCVE | |||
| 2022-12-05 20:14:17 | security@eclipse.org | emo@eclipse.org | CVE Assigner | updated |
| 2022-12-05 20:14:17 | 2021-01-14T23:15Z | 2021-01-14T23:15:13 | CVE Published Date | updated |
| 2022-12-05 20:14:17 | 2021-01-22T18:34:34 | CVE Modified Date | updated | |
| 2022-12-05 20:14:18 | Analyzed | Vulnerability Status | updated |