CVEvulnerability

CVE-2020-13593

8.8 HIGH Published 2020-08-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-08-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:A/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-347

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).

Affected configurations

• ti simplelink-cc2640r2 software development kit (<= 2.2.3)

Related

Weakness · CWE (1)

  • CWE-347 Improper Verification of Cryptographic Signature weakness

References