CVE-2021-31785
Apple Actions Bluetooth Classic Denial of Service
Description
The Bluetooth Classic implementation on Actions ATS2815 and ATS2819 chipsets does not properly handle the reception of multiple LMP_host_connection_req packets, allowing attackers in radio range to trigger a denial of service (deadlock) of the device via crafted LMP packets. Manual user intervention is required to restart the device and restore Bluetooth communication.
INFO
Published Date :
Sept. 7, 2021, 7:15 a.m.
Last Modified :
May 3, 2022, 4:04 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-31785 has a 3 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-2021-31785
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-2021-31785.
| URL | Resource |
|---|---|
| https://dl.packetstormsecurity.net/papers/general/braktooth.pdf | Technical Description Third Party Advisory |
| https://launchstudio.bluetooth.com/ListingDetails/76427 | Third Party Advisory |
| https://www.actions-semi.com/index.php?id=3581&siteId=4 | Broken Link Vendor 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).
None
A Series of Baseband & LMP Exploits against Bluetooth Classic Controllers
List of Bluetooth BR/EDR/LE security resources
bluetooth bluetooth-low-energy bluetooth-security pentesting penetration-testing security awesome awesome-list ble bluetooth-hacking
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-31785 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-31785 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]
May. 03, 2022
Action Type Old Value New Value Changed CWE NVD-CWE-noinfo CWE-667 -
Reanalysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Changed Reference Type https://launchstudio.bluetooth.com/ListingDetails/76427 Technical Description, Third Party Advisory https://launchstudio.bluetooth.com/ListingDetails/76427 Third Party Advisory -
Initial Analysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://dl.packetstormsecurity.net/papers/general/braktooth.pdf No Types Assigned https://dl.packetstormsecurity.net/papers/general/braktooth.pdf Technical Description, Third Party Advisory Changed Reference Type https://launchstudio.bluetooth.com/ListingDetails/76427 No Types Assigned https://launchstudio.bluetooth.com/ListingDetails/76427 Technical Description, Third Party Advisory Changed Reference Type https://www.actions-semi.com/index.php?id=3581&siteId=4 No Types Assigned https://www.actions-semi.com/index.php?id=3581&siteId=4 Broken Link, Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration AND OR *cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:actions-semi:ats2819p:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:actions-semi:ats2815:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:actions-semi:ats2819:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:actions-semi:ats2819s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:actions-semi:ats2819t:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-31785 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-2021-31785
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.03%
score
0.41252
percentile