CVE-2019-19194
Telink Semiconductor BLE SDK Bluetooth Low Energy Secure Manager Protocol (SMP) LTK Key Installation Vulnerability
Description
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.
INFO
Published Date :
Feb. 12, 2020, 3:15 p.m.
Last Modified :
Aug. 24, 2020, 5:37 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2019-19194 has a 5 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2019-19194
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-19194.
| URL | Resource |
|---|---|
| http://www.telink-semi.com/ble | Vendor Advisory |
| https://asset-group.github.io/disclosures/sweyntooth/ | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
VaktBLE: Friendly Bluetooth Low Energy MitM that block over-the-air attacks in real-time.
ble bluetooth-low-energy injectable jamming mitm ble-defense blediff sweyntooth vaktble
Python Shell Makefile C Batchfile C++ Tcl Mask GLSL C#
A writeup and theoretical Proof-of-Concept for CVE-2019-19194
Python
None
List of Bluetooth BR/EDR/LE security resources
bluetooth bluetooth-low-energy bluetooth-security pentesting penetration-testing security awesome awesome-list ble bluetooth-hacking
Proof of Concept of Sweyntooth Bluetooth Low Energy (BLE) vulnerabilities.
Python Shell Batchfile C++ Makefile C Dockerfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-19194 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-19194 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-863 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Feb. 25, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.telink-semi.com/ble No Types Assigned http://www.telink-semi.com/ble Vendor Advisory Changed Reference Type https://asset-group.github.io/disclosures/sweyntooth/ No Types Assigned https://asset-group.github.io/disclosures/sweyntooth/ Exploit, Third Party Advisory Added CWE NIST CWE-863 Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.4.0 OR cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.3 OR cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.4.0 OR cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.4.0 OR cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 1.3.0 OR cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-19194 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-19194
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.01%
score
0.42629
percentile