Home/CVE/A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch fa
CVE

CVE-2020-28395

A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch fa

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.

MEDIUM · CVSS 5.9 EPSS 0.0016
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-321Use of Hard-coded Cryptographic Key
CWE-798Use of Hard-coded Credentials
▤

Affected Products & Versions

8
siemens scalance xr324-12m firmware< 4.1.0
siemens scalance xr324-12m ts firmware< 4.1.0
siemens scalance xr324-4m eec firmware< 4.1.0
siemens scalance xr324-4m poe firmware< 4.1.0
siemens scalance xr324-4m poe ts firmware< 4.1.0
siemens scalance xr324wg firmware< 4.1.0
siemens scalance xr326-2c poe wg firmware< 4.1.0
siemens scalance xr328-4c wg firmware< 4.1.0
▣

Scoring & Timeline

5.9
MEDIUM · CVSS v3.1 · productcert@siemens.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Jan 2021 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

2
siemens-csafSSA-274900
cisa-csafcisa-csaf-csaf_files-OT-white-2021-icsa-21-012-02
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdfVendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02Third Party AdvisoryUS Government ResourceVendor Advisory
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin