Siemens SIMATIC Drive Controller family

CVE-2021-37185
HIGH 7.5

At a glance

Source
NVD
EPSS
EPSS 2.06 % · percentile 81 ()
State
PUBLISHED
Published
Updated
Assigner
siemens
NVD status
Modified

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V21.9 < V21.9.4), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions >= V4.5.0 < V4.5.2), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions >= V2.9.2 < V2.9.4), SIMATIC S7-1500 Software Controller (All versions >= V21.9 < V21.9.4), SIMATIC S7-PLCSIM Advanced (All versions >= V4.0 < V4.0 SP1), SIPLUS TIM 1531 IRC (All versions < V2.3.6), TIM 1531 IRC (All versions < V2.3.6). An unauthenticated attacker could cause a denial-of-service condition in a PLC when sending specially prepared packets over port 102/tcp. A restart of the affected device is needed to restore normal operations.

Weaknesses (CWE)

  • CWE-672 — Operation on a Resource after Expiration or Release

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csiemens
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · productcert@siemens.com (Secondary)
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Secondary)
CVSS 2.0HIGH 7.1AV:N/AC:M/Au:N/C:N/I:N/A:CNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Siemens · SIMATIC Drive Controller familyaffected All versions >= V2.9.2 < V2.9.4
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)affected All versions >= V21.9 < V21.9.4
Siemens · SIMATIC S7-1200 CPU family (incl. SIPLUS variants)affected All versions >= V4.5.0 < V4.5.2
Siemens · SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)affected All versions >= V2.9.2 < V2.9.4
Siemens · SIMATIC S7-1500 Software Controlleraffected All versions >= V21.9 < V21.9.4
Siemens · SIMATIC S7-PLCSIM Advancedaffected All versions >= V4.0 < V4.0 SP1
Siemens · SIPLUS TIM 1531 IRCaffected All versions < V2.3.6
Siemens · TIM 1531 IRCaffected All versions < V2.3.6

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD