CVE-2023-27408

A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The `i2c` mutex file is created with the permissions bits of `-rw-rw-rw-`. This file is used as a mutex for multiple applications interacting with i2c. This could allow an authenticated attacker with access to the SSH interface on the affected device to interfere with the integrity of the mutex and the data it protects.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-325383.pdf	Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-325383.pdf	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:siemens:scalance_lpe9403_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:scalance_lpe9403:-:*:*:*:*:*:*:*

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad ha sido identificada en SCALANCE LPE9403 (Todas las versiones anteriores a V2.1). El archivo mutex 'i2c' se crea con los bits de permisos de '-rw-rw-rw-'. Este archivo se utiliza como un mutex para múltiples aplicaciones que interactúan con i2c. Esto podría permitir a un atacante autenticado con acceso a la interfaz SSH en el dispositivo afectado interferir con la integridad del mutex y los datos que protege.

Information

Published : 2023-05-09 13:15

Updated : 2026-10-23 23:10

NVD link : CVE-2023-27408

Mitre link : CVE-2023-27408

CVE.ORG link : CVE-2023-27408

JSON object : View

Products Affected

siemens

scalance_lpe9403_firmware
scalance_lpe9403

CWE

CWE-378

Creation of Temporary File With Insecure Permissions

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