CVE-2021-45117
Intergraph OPC Sigma Station Stack Overflow
Description
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
INFO
Published Date :
March 21, 2022, 3:15 p.m.
Last Modified :
Nov. 21, 2024, 6:31 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-45117
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-2021-45117.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf | Patch Third Party Advisory |
| https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf | Patch Vendor Advisory |
| https://www.youtube.com/watch?v=qv-RBdCaV4k | Exploit Third Party Advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf | Patch Third Party Advisory |
| https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf | Patch Vendor Advisory |
| https://www.youtube.com/watch?v=qv-RBdCaV4k | 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-2021-45117 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-45117 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf Added Reference https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf Added Reference https://www.youtube.com/watch?v=qv-RBdCaV4k -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 03, 2022
Action Type Old Value New Value Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:siemens:simatic_net_pc:14:-:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_net_pc:15:-:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_net_pc:16:-:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_net_pc:17:-:*:*:*:*:*:* *cpe:2.3:a:siemens:sitop_manager:-:*:*:*:*:*:*:* *cpe:2.3:a:siemens:telecontrol_server_basic:3.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 10, 2022
Action Type Old Value New Value Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 28, 2022
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf No Types Assigned https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf Patch, Vendor Advisory Changed Reference Type https://www.youtube.com/watch?v=qv-RBdCaV4k No Types Assigned https://www.youtube.com/watch?v=qv-RBdCaV4k Exploit, Third Party Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:a:opcfoundation:ua-nodeset:*:*:*:*:*:*:*:* versions up to (excluding) 1.05.01
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-45117 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-2021-45117
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} -0.01%
score
0.51046
percentile