CVE-2021-37172

Published: Aug 10, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-287

7.5HIGH

NVD MITRE

Description

A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (V4.5.0). Affected devices fail to authenticate against configured passwords when provisioned using TIA Portal V13. This could allow an attacker using TIA Portal V13 or later versions to bypass authentication and download arbitrary programs to the PLC. The vulnerability does not occur when TIA Portal V13 SP1 or any later version was used to provision the device.

No summary for this CVE yet.

CVSS Vector Breakdown

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:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-287

Affected Products

Siemens

commercial·DEaka siemens ag

SIMATIC S7-1200 CPU family (incl. SIPLUS variants)

ICS / OT / IoT

simatic s7-1200 cpu firmware

ICS / OT / IoT

simatic step 7 \(tia portal\)

ICS / OT / IoT

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://cert-portal.siemens.com/productcert/pdf/ssa-830194.pdf

cert-portal.siemens.com

https://cert-portal.siemens.com/productcert/csaf/ssa-830194.json

cert-portal.siemens.com

https://cert-portal.siemens.com/productcert/txt/ssa-830194.txt

cert-portal.siemens.com

and 10 more references View all →

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