CVE-2020-28391 — Use of Hard-coded Cryptographic Key in Siemens Scalance X200-4pirt Firmware

CWE-321 — Use of Hard-coded Cryptographic KeyCWE-798 — Hard-coded Credentials3 documents3 sources
Severity
5.9MEDIUMNVD
EPSS
0.1%
top 68.17%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
51
Siemens Scalance X200-4pirt FirmwareSiemens Scalance X201-3pirt FirmwareSiemens Scalance X202-2irt Firmware+48 more
Timeline
PublishedJan 12
Latest updateMay 24

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), SCALANCE X-200RNA switch family (All versions < V3.2.7). 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-…

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 2.2 | Impact: 3.6

Affected Packages51 packages

▶CVEListV5siemens/scalance_x-200irt_switch_familyAll versions < V5.5.0
▶CVEListV5siemens/scalance_x-200rna_switch_familyAll versions < V3.2.7
▶CVEListV5siemens/scalance_x-200_switch_familyAll versions < V5.2.5

🔴Vulnerability Details

2
GHSA
GHSA-pffp-ch4h-4669: A vulnerability has been identified in SCALANCE X-200 switch family (incl↗2022-05-24
▶
CVEList
CVE-2020-28391: A vulnerability has been identified in SCALANCE X-200 switch family (incl↗2021-01-12
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CVE-2020-28391 — Use of Hard-coded Cryptographic Key | cvebase