CVE-2021-31894

Summary

CVECVE-2021-31894
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-07-13 11:15:00 UTC
Updated2022-08-10 20:28:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-732

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Siemens Simatic Pcs 7 - All All All
Operating System Siemens Simatic Pcs 7 Firmware 9.0 All All All
Operating System Siemens Simatic Pcs 7 Firmware All All All All
Hardware Siemens Simatic Pdm - All All All
Operating System Siemens Simatic Pdm Firmware - All All All
Hardware Siemens Simatic Step 7 - All All All
Operating System Siemens Simatic Step 7 Firmware All All All All
Hardware Siemens Sinamics Starter - All All All
Operating System Siemens Sinamics Starter Firmware All All All All
Operating System Siemens Sinamics Starter Firmware - All All All
Operating System Siemens Sinamics Starter Firmware 5.4 - All All
Operating System Siemens Sinamics Starter Firmware 5.4 hf1 All All
Operating System Siemens Sinamics Starter Firmware 5.4 hf2 All All
Operating System Siemens Sinamics Starter Firmware 5.4 sp1 All All
Operating System Siemens Sinamics Starter Firmware 5.4 sp1_hf1 All All
Operating System Siemens Sinamics Starter Firmware 5.4 sp2 All All

References

ReferenceSourceLinkTags
N/A CONFIRM cert-portal.siemens.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 590552 Siemens SIMATIC Software Products (Update A) Incorrect Permission Assignment for Critical Resource Vulnerability (ICSA-21-194-06)
  • 591174 Siemens SIMATIC PCS 7, Step 7, Starter Incorrect Permission Assignment Vulnerability (SSA-661034)
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