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Unrated severityNVD Advisory· Published Jul 13, 2021· Updated Aug 3, 2024

CVE-2021-31894

CVE-2021-31894

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.

Affected products

8
  • Siemens Foundation/SIMATIC PDMllm-fuzzy
    Range: < V9.2 SP2
  • Siemens Foundation/SIMATIC STEP7llm-fuzzy2 versions
    < V5.7+ 1 more
    • (no CPE)range: < V5.7
    • (no CPE)range: All versions < V5.7
  • Siemens Foundation/Simatic Pcs7llm-fuzzy3 versions
    V8.2 and earlier, V9.X < V9.1 SP2+ 2 more
    • (no CPE)range: V8.2 and earlier, V9.X < V9.1 SP2
    • (no CPE)range: All versions < V9.1 SP2
    • (no CPE)range: All versions < V9.2 SP2
  • Siemens/SIMATIC PCS 7 V8.2 and earlierv5
    Range: All versions
  • Siemens/SINAMICS STARTER (containing STEP 7 OEM version)v5
    Range: All versions < V5.4 SP2 HF1

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

1

News mentions

0

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