The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices installs a zero long term key (LTK) if an out-of-order link-layer encryption request is received during Secure Connections pairing. An attacker in radio range can have arbitrary read/write access to protected GATT service data, cause a device crash, or possibly control a device's function by establishing an encrypted session with the zero LTK.
References
Link | Resource |
---|---|
http://www.telink-semi.com/ble | Vendor Advisory |
https://asset-group.github.io/disclosures/sweyntooth/ | Exploit Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2020-02-12T14:25:08
Updated: 2020-02-12T14:25:08
Reserved: 2019-11-21T00:00:00
Link: CVE-2019-19194
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-02-12T15:15:12.053
Modified: 2020-08-24T17:37:01.140
Link: CVE-2019-19194
JSON object: View
Redhat Information
No data.
CWE