CVE-2021-31894

HIGH

8.8

Description

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions < V9.1 SP2), SIMATIC PDM (All versions < V9.2 SP2), SIMATIC STEP 7 V5.X (All versions < V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 SP2 HF1). A directory containing metafiles relevant to devices' configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published7/13/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

siemens:simatic_pcs_7siemens:simatic_pcs_7_firmwaresiemens:simatic_pdmsiemens:simatic_pdm_firmwaresiemens:simatic_step_7siemens:simatic_step_7_firmwaresiemens:sinamics_startersiemens:sinamics_starter_firmware

Weaknesses (CWE)

CWE-732

References

https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf(productcert@siemens.com)

https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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