CVE-2021-45117
published 2022-03-21CVE-2021-45117: The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
PriorityP425medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
1.40%
69.5th percentile
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| opcfoundation | ua-nodeset | < 1.05.01 | 1.05.01 |
| siemens | simatic_net_pc | — | — |
| siemens | simatic_net_pc | — | — |
| siemens | simatic_net_pc | — | — |
| siemens | simatic_net_pc | — | — |
| siemens | telecontrol_server_basic | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
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GHSA
GHSA-v4v7-f2qj-8939: The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases
ghsa_unreviewed·2022-03-22
CVE-2021-45117 [MEDIUM] CWE-476 GHSA-v4v7-f2qj-8939: The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
CISA ICS
Siemens Industrial Products with OPC UA (Update C)
cisa_ics·2022-05-12
Siemens Industrial Products with OPC UA (Update C)
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens Industrial Products with OPC UA (Update C)
Last RevisedOctober 13, 2022
Alert CodeICSA-22-132-08
## 1. EXECUTIVE SUMMARY
- CVSS v3 6.5
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: SIMATIC NET PC, SITOP Manager, TeleControl Server Basic
- Vulnerability: Null Pointer Dereference
## 2. UPDATE INFORMATION
This updated advisory is a follow-up to the original advisory titled ICSA-22-132-08 Siemens Industrial Products with OPC UA that was published May 12, 2022, on the ICS webpage on cisa.gov/ICS.
## 3. RISK EVALUATION
Successfu
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdfhttps://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdfhttps://www.youtube.com/watch?v=qv-RBdCaV4khttps://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdfhttps://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdfhttps://www.youtube.com/watch?v=qv-RBdCaV4k
2022-03-21
Published