CVE-2020-26556
CVSS V2 Low 2.9
CVSS V3 High 7.5
Description
Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device, able to conduct a successful brute-force attack on an insufficiently random AuthValue before the provisioning procedure times out, to complete authentication by leveraging Malleable Commitment.
Overview
- CVE ID
- CVE-2020-26556
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-05-24T18:15:07
- Last Modified Date
- 2022-04-29T14:10:50
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:* | 1 | OR | 1.0b | 5.2 |
| cpe:2.3:a:bluetooth:mesh_profile:1.0.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:bluetooth:mesh_profile:1.0.1:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.9
- Severity
- LOW
- Exploitability Score
- 5.5
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 1.6
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://kb.cert.org/vuls/id/799380 | Third Party Advisory US Government Resource |
| https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ | Vendor Advisory |
| https://www.kb.cert.org/vuls/id/799380 | Third Party Advisory US Government Resource |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-26556 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26556 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-08 06:20:31 | Added to TrackCVE | |||
| 2022-12-05 02:53:19 | 2021-05-24T18:15Z | 2021-05-24T18:15:07 | CVE Published Date | updated |
| 2022-12-05 02:53:19 | 2022-04-29T14:10:50 | CVE Modified Date | updated | |
| 2022-12-05 02:53:19 | Analyzed | Vulnerability Status | updated |