Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2013-6920

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
07/12/2013
Last modified:
11/04/2025

Description

Siemens SINAMICS S/G controllers with firmware before 4.6.11 do not require authentication for FTP and TELNET sessions, which allows remote attackers to bypass intended access restrictions via TCP traffic to port (1) 21 or (2) 23.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 10.00 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
10.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:siemens:sinamics_s\/g_family_firmware:*:*:*:*:*:*:*:* 4.6 (including)
cpe:2.3:h:siemens:sinamics_g110:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g110d:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g120:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g120c:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g120d:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g120p:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g130:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g150:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_g180:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_s110:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_s120:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_s120cm:-:*:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_s150:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools