CVE-2021-31894

https://notcve.org/view.php?id=CVE-2021-31894

13 Jul 2021 — 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 paramet... • https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf • CWE-732: Incorrect Permission Assignment for Critical Resource •