CVE-2021-21777
OpENer Ethernet/IP UDP Handler Out-of-Bounds Read Information Disclosure
Description
An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.
INFO
Published Date :
June 17, 2021, 11:15 a.m.
Last Modified :
Aug. 24, 2022, 9:56 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.8
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-2021-21777.
| URL | Resource |
|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-21777 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21777 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 -
Modified Analysis by [email protected]
Aug. 24, 2022
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 19, 2022
Action Type Old Value New Value Added CVSS V3 Talos AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H -
Initial Analysis by [email protected]
Jun. 24, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:N/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H Changed Reference Type https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234 No Types Assigned https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234 Exploit, Third Party Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:opener_project:opener:2.3:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21777 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-2021-21777
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.37 }} 0.02%
score
0.72938
percentile