CVE-2020-13593
Last modified
CVE-2020-13593 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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).. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ti | Simplelink-Cc2640r2 Software Development Kit | <= 2.2.3 |
References
- http://www.ti.com/tool/BLE-STACKVendor Advisory
- https://asset-group.github.io/cves.htmlThird Party Advisory
- https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
- http://www.ti.com/tool/BLE-STACKVendor Advisory
- https://asset-group.github.io/cves.htmlThird Party Advisory
- https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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