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CVE-2021-44695

Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.

Published: Dec 13, 2022Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-1286
NVD MITRE
4.9CVSSMEDIUM
EPSS Score
0.7%
Top 51.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Affected SIMATIC firmware contains multiple vulnerabilities that could allow an unauthenticated attacker to perform a denial of service attack under certain conditions. Siemens has released updates for the affected products and recommends to update to the latest versions.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-1286CWE-20

Affected Products

SIMATIC Drive Controller CPU 1504D TFSiemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC Drive Controller CPU 1507D TFSiemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)Siemens
Embedded
ICS / OT / IoT / plc-scada-hmi
SIMATIC S7-1200 CPU family (incl. SIPLUS variants)Siemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC S7-1500 CPU 1510SP F-1 PNSiemens
On-prem
Enterprise Software / collaboration-groupware
siemenscommercialDEEnterprise Softwareaka siemens ag
and 168 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-382653.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-382653.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-382653.pdf
cert-portal.siemens.com
and 9 more references View all →

Timeline

Published
Dec 13, 2022
Last Updated
Nov 21, 2024

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