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CVE-2021-31344

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CO...

Published: Nov 9, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-843
5.3MEDIUM
NVD MITRE
EPSS Score
1.5%
Top 28.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Multiple vulnerabilities (also known as “NUCLEUS:13”) have been identified in the Nucleus RTOS (real-time operating system), originally reported in the Siemens Security Advisory SSA-044112: https://cert-portal.siemens.com/productcert/pdf/ssa-044112.pdf. SIMOTICS CONNECT 400 devices are affected by some of the vulnerabilities as documented below. Siemens has released an update for the SIMOTICS CONNECT 400 and recommends to update to the latest version.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-843

Affected Products

Siemens
commercial·DEaka siemens ag
capital vstar
ICS / OT / IoT
nucleus net
ICS / OT / IoT
nucleus readystart v3
ICS / OT / IoT
nucleus readystart v4
ICS / OT / IoT
nucleus source code
ICS / OT / IoT
apogee modular building controller firmware
ICS / OT / IoT
apogee modular equiment controller firmware
ICS / OT / IoT
apogee pxc compact firmware
ICS / OT / IoT
and 7 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-223353.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/txt/ssa-223353.txt
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-223353.pdf
cert-portal.siemens.com
and 22 more references View all →

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