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
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
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