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.

Details CVE

Score CVSS v3.18.8

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie7/13/2021

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

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

Faiblesses (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)

Correlations IOC

Aucune correlation enregistree

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