Siemens LOGO! CMR2020
At a glance
- Source
- NVD
- EPSS
- EPSS 0.36 % · percentile 29 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- siemens
- NVD status
- Modified
Description
A vulnerability has been identified in LOGO! CMR2020 (All versions < V2.2), LOGO! CMR2040 (All versions < V2.2), SIMATIC RTU3010C (All versions < V4.0.9), SIMATIC RTU3030C (All versions < V4.0.9), SIMATIC RTU3031C (All versions < V4.0.9), SIMATIC RTU3041C (All versions < V4.0.9). The underlying TCP/IP stack does not properly calculate the random numbers used as ISN (Initial Sequence Numbers). An adjacent attacker with network access to the LAN interface could interfere with traffic, spoof the connection and gain access to sensitive information.
Weaknesses (CWE)
- CWE-330 — Use of Insufficiently Random Values
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.8 | AV:A/AC:L/Au:N/C:P/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-23760
- GCVE · GCVE-0-2021-37186
CERT-FR advisories
- CERTFR-2022-AVI-124 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2021-AVI-706 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:siemens:logo\!_cmr2020_firmware:*:*:*:*:*:*:*:*< 2.2cpe:2.3:o:siemens:logo\!_cmr2040_firmware:*:*:*:*:*:*:*:*< 2.2cpe:2.3:o:siemens:simatic_rtu3010c_firmware:*:*:*:*:*:*:*:*< 4.0.9cpe:2.3:o:siemens:simatic_rtu3030c_firmware:*:*:*:*:*:*:*:*< 4.0.9cpe:2.3:o:siemens:simatic_rtu3031c_firmware:*:*:*:*:*:*:*:*< 4.0.9cpe:2.3:o:siemens:simatic_rtu3041c_firmware:*:*:*:*:*:*:*:*< 4.0.9
Affected products
| Product | Versions |
|---|---|
| Siemens · LOGO! CMR2020 | affected All versions < V2.2 |
| Siemens · LOGO! CMR2040 | affected All versions < V2.2 |
| Siemens · SIMATIC RTU3010C | affected All versions < V4.0.9 |
| Siemens · SIMATIC RTU3030C | affected All versions < V4.0.9 |
| Siemens · SIMATIC RTU3031C | affected All versions < V4.0.9 |
| Siemens · SIMATIC RTU3041C | affected All versions < V4.0.9 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |