CVE-2020-28395
First published: Tue Jan 12 2021(Updated: )
A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.
Credit: productcert@siemens.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Siemens SCALANCE X-200 switch family (incl. SIPLUS NET variants) | <5.2.5 | 5.2.5 |
| Siemens Scalance XR324-12M | <4.1.0 | |
| Siemens Scalance XR324-12M Firmware | ||
| Siemens Scalance XR324-12M TS | <4.1.0 | |
| Siemens Scalance XR324-12M | ||
| Siemens Scalance XR324-4M EEC Firmware | <4.1.0 | |
| Siemens Scalance XR324-4M EEC Firmware | ||
| Siemens SCALANCE XR324-4M PoE | <4.1.0 | |
| Siemens Scalance XR324-4M PoE Firmware | ||
| Siemens Scalance XR324-4M PoE TS | <4.1.0 | |
| Siemens Scalance XR324-4M PoE TS | ||
| Siemens Scalance XR324WG Firmware | <4.1.0 | |
| Siemens Scalance XR324WG Firmware | ||
| Siemens SCALANCE XR326-2C PoE WG (Without UL) | <4.1.0 | |
| Siemens Scalance XR326-2C POE WG | ||
| Siemens Scalance XR328-4C WG | <4.1.0 | |
| Siemens SCALANCE XR328-4C WG |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2020-28395.
Which devices are affected by this vulnerability?
The SCALANCE X-200RNA switch family (All versions < V3.2.7) and SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0) are affected by this vulnerability.
What is the severity of CVE-2020-28395?
The severity of CVE-2020-28395 is medium with a CVSS score of 5.9.
What is the impact of this vulnerability?
An attacker could exploit this vulnerability to leverage the lack of a unique private key after a factory reset.
Are there any known security advisories related to this vulnerability?
Yes, there are security advisories available for this vulnerability. You can find them at the following references: [link1](https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf), [link2](https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02).
- agent/weakness
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/author
- agent/description
- agent/first-publish-date
- agent/references
- agent/severity
- agent/event
- collector/ics-cert-advisory
- source/ICS
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/trending
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- vendor/siemens
- canonical/siemens scalance x-200 switch family (incl. siplus net variants)
- canonical/siemens scalance xr324-12m
- canonical/siemens scalance xr324-12m firmware
- canonical/siemens scalance xr324-12m ts
- canonical/siemens scalance xr324-4m eec firmware
- canonical/siemens scalance xr324-4m poe
- canonical/siemens scalance xr324-4m poe firmware
- canonical/siemens scalance xr324-4m poe ts
- canonical/siemens scalance xr324wg firmware
- canonical/siemens scalance xr326-2c poe wg (without ul)
- canonical/siemens scalance xr326-2c poe wg
- canonical/siemens scalance xr328-4c wg