CVE-2020-16630
CVSS V2 Medium 4.3
CVSS V3 Medium 6.8
Description
TI’s BLE stack caches and reuses the LTK’s property for a bonded mobile. A LTK can be an unauthenticated-and-no-MITM-protection key created by Just Works or an authenticated-and-MITM-protection key created by Passkey Entry, Numeric Comparison or OOB. Assume that a victim mobile uses secure pairing to pair with a victim BLE device based on TI chips and generate an authenticated-and-MITM-protection LTK. If a fake mobile with the victim mobile’s MAC address uses Just Works and pairs with the victim device, the generated LTK still has the property of authenticated-and-MITM-protection. Therefore, the fake mobile can access attributes with the authenticated read/write permission.
Overview
- CVE ID
- CVE-2020-16630
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-20T20:15:11
- Last Modified Date
- 2021-10-07T13:13:16
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:ti:15.4-stack:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ti:ble5-stack:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ti:dynamic_multi-protocal_manager:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ti:easylink:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ti:openthread:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:ti:z-stack:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:ti:real-time_operating_system:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:M/Au:N/C:P/I:P/A:N
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 5.5
- Impact Score
- 4.9
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:N
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 6.8
- Base Severity
- MEDIUM
- Exploitability Score
- 1.6
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://www.usenix.org/system/files/sec20-zhang-yue.pdf | Exploit Third Party Advisory |
| http://software-dl.ti.com/simplelink/esd/simplelink_cc13x2_26x2_sdk/3.20.00.68/exports/changelog.html | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-16630 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16630 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:52:14 | Added to TrackCVE | |||
| 2022-12-05 11:02:56 | 2021-09-20T20:15Z | 2021-09-20T20:15:11 | CVE Published Date | updated |
| 2022-12-05 11:02:56 | 2021-10-07T13:13:16 | CVE Modified Date | updated | |
| 2022-12-05 11:02:56 | Analyzed | Vulnerability Status | updated |