CVE-2017-14937
"Passenger Vehicle Airbag Security Flaw Allows Predictable Detonation"
Description
The airbag detonation algorithm allows injury to passenger-car occupants via predictable Security Access (SA) data to the internal CAN bus (or the OBD connector). This affects the airbag control units (aka pyrotechnical control units or PCUs) of unspecified passenger vehicles manufactured in 2014 or later, when the ignition is on and the speed is less than 6 km/h. Specifically, there are only 256 possible key pairs, and authentication attempts have no rate limit. In addition, at least one manufacturer's interpretation of the ISO 26021 standard is that it must be possible to calculate the key directly (i.e., the other 255 key pairs must not be used). Exploitation would typically involve an attacker who has already gained access to the CAN bus, and sends a crafted Unified Diagnostic Service (UDS) message to detonate the pyrotechnical charges, resulting in the same passenger-injury risks as in any airbag deployment.
INFO
Published Date :
Oct. 20, 2017, 2:29 p.m.
Last Modified :
March 28, 2018, 1:29 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.0
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-2017-14937.
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).
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The following list is the news that have been mention
CVE-2017-14937 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-14937 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.
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CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 28, 2018
Action Type Old Value New Value Added Reference https://www.researchgate.net/publication/321183727_Security_Evaluation_of_an_Airbag-ECU_by_Reusing_Threat_Modeling_Artefacts [No Types Assigned] Added Reference https://www.rapid7.com/db/modules/post/hardware/automotive/pdt [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 13, 2017
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type http://www.mmt.hs-karlsruhe.de/downloads/IEEM/Schwachstellen/PCU_Vulnerability_Description_HsKA.PDF No Types Assigned http://www.mmt.hs-karlsruhe.de/downloads/IEEM/Schwachstellen/PCU_Vulnerability_Description_HsKA.PDF Third Party Advisory Added CWE CWE-327 Added CPE Configuration OR *cpe:2.3:h:pcu:pcu:2014:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-14937 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-2017-14937
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.23899
percentile