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CVE-2020-28397

Published: Aug 10, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-863
5.3MEDIUM
NVD MITRE
EPSS Score
0.8%
Top 49.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

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
Open in CVSS calculator →

Weaknesses

CWE-863

Affected Products

Siemens
commercial·DEaka siemens ag
SIMATIC Drive Controller family
ICS / OT / IoT
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
ICS / OT / IoT
SIMATIC S7 PLCSIM Advanced
ICS / OT / IoT
SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
ICS / OT / IoT
SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
ICS / OT / IoT
SIMATIC S7-1500 Software Controller
ICS / OT / IoT
TIM 1531 IRC (incl. SIPLUS NET variants)
ICS / OT / IoT
cpu 1504d tf firmware
ICS / OT / IoT
and 55 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-28397?We can run the check for you — a free external exposure review, no install. Check my exposure

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
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 →
News mentions
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