CVE-2020-13593

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).

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory ti.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ti.com/tool/BLE-STACK vendor advisory
https://asset-group.github.io/disclosures/sweyntooth/ third party advisory
https://asset-group.github.io/cves.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-13593?
CVE-2020-13593 has been scored as a high severity vulnerability.
How to fix CVE-2020-13593?
To fix CVE-2020-13593, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-13593 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-13593 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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