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CVE-2021-31882

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303). The DHCP client application does not validate t...

Published: Nov 9, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-119
6.5MEDIUM
NVD MITRE
EPSS Score
1.5%
Top 27.0%
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 be identified in the Nucleus RTOS (real-time operating system) and reported in the Siemens Security Advisory SSA-044112: https://cert-portal.siemens.com/productcert/html/ssa-044112.html. Capital Embedded AR Classic uses an affected version of the Nucleus software and inherently contains several of these vulnerabilities. Siemens has released a new version for Capital Embedded AR Classic R20-11 and recommends to update to the latest version. Siemens is preparing further fix versions and recommends specific countermeasures for products where fixes are not, or not yet available.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-119

Affected Products

Siemens
commercial·DEaka siemens ag
capital vstar
ICS / OT / IoT
nucleus net
ICS / OT / IoT
nucleus readystart v3
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
apogee pxc modular firmware
ICS / OT / IoT
and 4 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-620288.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-620288.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-350-06.json
raw.githubusercontent.com
and 12 more references View all →

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