CVE-2020-13593
CVSS V2 Medium 5.8
CVSS V3 High 8.8
Description
The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation in Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK through 2.2.3 allows the Diffie-Hellman check during the Secure Connection pairing to be skipped if the Link Layer encryption setup is performed earlier. An attacker in radio range can achieve arbitrary read/write access to protected GATT service data, cause a denial of service, or possibly control a device's function by establishing an encrypted session with an unauthenticated Long Term Key (LTK).
Overview
- CVE ID
- CVE-2020-13593
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-08-31T15:15:10
- Last Modified Date
- 2021-07-21T11:39:23
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:ti:simplelink-cc2640r2_software_development_kit:*:*:*:*:*:*:*:* | 1 | OR | 2.2.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 5.8
- Severity
- MEDIUM
- Exploitability Score
- 6.5
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- 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://asset-group.github.io/disclosures/sweyntooth/ | Third Party Advisory |
| https://asset-group.github.io/cves.html | Third Party Advisory |
| http://www.ti.com/tool/BLE-STACK | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-13593 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13593 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:02:08 | Added to TrackCVE | |||
| 2022-12-04 21:44:16 | 2020-08-31T15:15Z | 2020-08-31T15:15:10 | CVE Published Date | updated |
| 2022-12-04 21:44:16 | 2021-07-21T11:39:23 | CVE Modified Date | updated | |
| 2022-12-04 21:44:17 | Analyzed | Vulnerability Status | updated |