CVE Vulnerabilities

CVE-2020-28395

Use of Hard-coded Cryptographic Key

Published: Jan 12, 2021 | Modified: Dec 13, 2022
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered.

Affected Software

Name Vendor Start Version End Version
Scalance_xr324-12m_firmware Siemens * 4.1.0 (excluding)

Potential Mitigations

References