Vulnerability Details : CVE-2020-13593
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).
Vulnerability category: Denial of service
Products affected by CVE-2020-13593
- cpe:2.3:a:ti:simplelink-cc2640r2_software_development_kit:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-13593
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 9 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-13593
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.8
|
MEDIUM | AV:A/AC:L/Au:N/C:P/I:P/A:P |
6.5
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-13593
-
The product does not verify, or incorrectly verifies, the cryptographic signature for data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-13593
-
http://www.ti.com/tool/BLE-STACK
Vendor Advisory
-
https://asset-group.github.io/cves.html
ASSET Research Group: CVEsThird Party Advisory
-
https://asset-group.github.io/disclosures/sweyntooth/
ASSET Research Group: SweynToothThird Party Advisory
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