CVE-2020-28391

 

Published at: - 12-01-2021 10:15

Last modified: - 28-07-2022 04:24

Total changes: - 6

Description

A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0). Devices create a new unique key upon factory reset, except when used with C-PLUG. When used with C-PLUG the devices use the hardcoded private RSA-key shipped with the firmware-image. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

 

Verification logic

 

Reference

• https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf
• https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02

 

Keywords

NVD

 

CVE-2020-28391

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures