CVE-2021-20987
Hilscher EtherNet/IP Core Denial of Service and Memory Corruption Vulnerability
Description
A denial of service and memory corruption vulnerability was found in Hilscher EtherNet/IP Core V2 prior to V2.13.0.21that may lead to code injection through network or make devices crash without recovery.
INFO
Published Date :
Feb. 16, 2021, 5:15 p.m.
Last Modified :
April 26, 2022, 2:11 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-20987
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-2021-20987.
| URL | Resource |
|---|---|
| https://cert.vde.com/en-us/advisories/vde-2021-007 | Third Party Advisory |
| https://kb.hilscher.com/pages/viewpage.action?pageId=108969480 | 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-2021-20987 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20987 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]
Apr. 26, 2022
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:C) Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H -
CVE Modified by [email protected]
May. 13, 2021
Action Type Old Value New Value Removed CVSS V3.1 CERT@VDE AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 CERT@VDE AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Removed CVSS V3.1 Reason I-No limiting factors Removed CVSS V3.1 Reason C-No limiting factors Removed CWE CERT@VDE CWE-121 Added CWE CERT@VDE CWE-787 -
Initial Analysis by [email protected]
Feb. 22, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://cert.vde.com/en-us/advisories/vde-2021-007 No Types Assigned https://cert.vde.com/en-us/advisories/vde-2021-007 Third Party Advisory Changed Reference Type https://kb.hilscher.com/pages/viewpage.action?pageId=108969480 No Types Assigned https://kb.hilscher.com/pages/viewpage.action?pageId=108969480 Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration AND OR *cpe:2.3:o:hilscher:ethernet\/ip_adapter_firmware:*:*:*:*:*:*:*:* versions from (including) 2.0 up to (excluding) 2.13.0.21 OR cpe:2.3:h:hilscher:ethernet\/ip_adapter:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:pepperl-fuchs:wcs_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.2.1 OR cpe:2.3:h:pepperl-fuchs:wcs3b-ls510:-:*:*:*:*:*:*:* cpe:2.3:h:pepperl-fuchs:wcs3b-ls510-om:-:*:*:*:*:*:*:* cpe:2.3:h:pepperl-fuchs:wcs3b-ls510d:-:*:*:*:*:*:*:* cpe:2.3:h:pepperl-fuchs:wcs3b-ls510d-om:-:*:*:*:*:*:*:* cpe:2.3:h:pepperl-fuchs:wcs3b-ls510dh:-:*:*:*:*:*:*:* cpe:2.3:h:pepperl-fuchs:wcs3b-ls510dh-om:-:*:*:*:*:*:*:* cpe:2.3:h:pepperl-fuchs:wcs3b-ls510h:-:*:*:*:*:*:*:* cpe:2.3:h:pepperl-fuchs:wcs3b-ls510h-om:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:pepperl-fuchs:pxv100-f200-b25-v1d_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10.0 OR cpe:2.3:h:pepperl-fuchs:pxv100-f200-b25-v1d:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:pepperl-fuchs:pxv100i-f200-b25-v1d_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10.0 OR cpe:2.3:h:pepperl-fuchs:pxv100i-f200-b25-v1d:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:pepperl-fuchs:pcv100-f200-b25-v1d-6011-6720_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10.0 OR cpe:2.3:h:pepperl-fuchs:pcv100-f200-b25-v1d-6011-6720:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:pepperl-fuchs:pcv50-f200-b25-v1d_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10.0 OR cpe:2.3:h:pepperl-fuchs:pcv50-f200-b25-v1d:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:pepperl-fuchs:pcv80-f200-b25-v1d_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10.0 OR cpe:2.3:h:pepperl-fuchs:pcv80-f200-b25-v1d:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:pepperl-fuchs:pcv100-f200-b25-v1d-6011_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.10.0 OR cpe:2.3:h:pepperl-fuchs:pcv100-f200-b25-v1d-6011:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20987 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-2021-20987
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.41263
percentile