VDB
CVE-2021-31894
CVE-2021-31894
PUBLISHED
CVSS 7.199999809265137 HIGH
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.
EPSS 0.03% · 8.7th percentile
Risk Scores
CVSS 2.0
7.199999809265137
EPSS Score
0.03%
8.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| siemens | simatic_pdm_firmware | |
| Siemens | SINAMICS STARTER (containing STEP 7 OEM version) | All versions < V5.4 SP2 HF1 |
| Siemens | SIMATIC STEP 7 V5.X | All versions < V5.7 |
| Siemens | SIMATIC PCS 7 V8.2 and earlier | All versions |
| siemens | simatic_step_7_firmware | 5.0 |
| Siemens | SIMATIC PCS 7 V9.X | All versions < V9.1 SP2 |
| Siemens | SIMATIC PDM | All versions < V9.2 SP2 |
| siemens | sinamics_starter_firmware | 5.4, 5.4, 0 |
| siemens | simatic_pcs_7_firmware | 9.0, 0 |
Timeline
- Apr 13, 2021 CVE Published
- Jul 14, 2021 EPSS Score
- Sep 12, 2021 EPSS Score
- Nov 10, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 9, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 8, 2022 EPSS Score
- Jul 7, 2022 EPSS Score
- Sep 6, 2022 EPSS Score
- Nov 4, 2022 EPSS Score
- Jan 3, 2023 EPSS Score
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-729965.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-434536.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-209268.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-173615.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-434535.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-599968.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-622535.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-373591.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-352521.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-31894 advisory