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CVE-2020-28397

Published: Aug 10, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-863
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.8%
Top 49.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7 PLCSIM Advanced (All versions > V2 < V4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (Version V4.4), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions > V2.5 < V2.9.2), SIMATIC S7-1500 Software Controller (All versions > V2.5 < V21.9), TIM 1531 IRC (incl. SIPLUS NET variants) (Version V2.1). Due to an incorrect authorization check in the affected component, an attacker could extract information about access protected PLC program variables over port 102/tcp from an affected device when reading multiple attributes at once.

CVSS Vector Breakdown

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

CWE-863

Affected Products

SIMATIC Drive Controller familySiemens
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 PLCSIM AdvancedSiemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC S7-1200 CPU family (incl. SIPLUS variants)Siemens
On-prem
Enterprise Software / collaboration-groupware
SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)Siemens
On-prem
Enterprise Software / collaboration-groupware
siemenscommercialDEEnterprise Softwareaka siemens ag
and 58 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

2 techniques
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-865327.pdf
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-865327.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/txt/ssa-865327.txt
cert-portal.siemens.com
and 16 more references View all →

Timeline

Published
Aug 10, 2021
Last Updated
Nov 21, 2024

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