CVE-2021-43667
HyperLedger Fabric NULL Message Crash Vulnerability
Description
A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.1.0. This bug can be leveraged by constructing a message whose payload is nil and sending this message with the method 'forwardToLeader'. This bug has been admitted and fixed by the developers of Fabric. If leveraged, any leader node will crash.
INFO
Published Date :
Nov. 18, 2021, 4:15 p.m.
Last Modified :
Nov. 23, 2021, 4:36 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2021-43667.
| URL | Resource |
|---|---|
| https://github.com/hyperledger/fabric/pull/2844 | Patch Third Party Advisory |
| https://jira.hyperledger.org/browse/FAB-18529 | Exploit 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43667 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43667 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 -
Initial Analysis by [email protected]
Nov. 23, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/hyperledger/fabric/pull/2844 No Types Assigned https://github.com/hyperledger/fabric/pull/2844 Patch, Third Party Advisory Changed Reference Type https://jira.hyperledger.org/browse/FAB-18529 No Types Assigned https://jira.hyperledger.org/browse/FAB-18529 Exploit, Vendor Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:fabric:1.4.0:*:*:*:*:*:*:* *cpe:2.3:a:linuxfoundation:fabric:2.0.0:*:*:*:*:*:*:* *cpe:2.3:a:linuxfoundation:fabric:2.1.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43667 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-2021-43667
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.13 }} 0.02%
score
0.48758
percentile