Riskcovery

CVE-2021-31894

State
Published
Severity
Not scored
Published
Jul 13, 2021
Updated
Aug 3, 2024
Reserved
Apr 29, 2021

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

  • CWE-732 Incorrect Permission Assignment for Critical Resource

Affected Products

ProductVersions
SIMATIC PCS 7 V8.2 and earlierSiemens
  • All versionsAffected
SIMATIC PCS 7 V9.XSiemens
  • All versions < V9.1 SP2Affected
SIMATIC PDMSiemens
  • All versions < V9.2 SP2Affected
SIMATIC STEP 7 V5.XSiemens
  • All versions < V5.7Affected
SINAMICS STARTER (containing STEP 7 OEM version)Siemens
  • All versions < V5.4 SP2 HF1Affected

References

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