Siemens Scalance W-7xx Series Improper Authentication (CVE-2013-4652)

critical Tenable OT Security Plugin ID 500997


The remote OT asset is affected by a vulnerability.


Unspecified vulnerability in the command-line management interface on Siemens Scalance W7xx devices with firmware before 4.5.4 allows remote attackers to bypass authentication and execute arbitrary code via a (1) SSH or (2) TELNET connection.

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Refer to the vendor advisory.

See Also

Plugin Details

Severity: Critical

ID: 500997

Version: 1.4

Type: remote

Family: Tenable.ot

Published: 4/11/2023

Updated: 4/22/2024

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2013-4652


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/h:siemens:scalance_w744-1:-, cpe:/h:siemens:scalance_w744-1pro:-, cpe:/h:siemens:scalance_w746-1:-, cpe:/h:siemens:scalance_w746-1pro:-, cpe:/h:siemens:scalance_w747-1:-, cpe:/h:siemens:scalance_w747-1rr:-, cpe:/h:siemens:scalance_w784-1:-, cpe:/h:siemens:scalance_w784-1rr:-, cpe:/h:siemens:scalance_w786-1pro:-, cpe:/h:siemens:scalance_w786-2pro:-, cpe:/h:siemens:scalance_w786-2rr:-, cpe:/h:siemens:scalance_w786-3pro:-, cpe:/h:siemens:scalance_w788-1pro:-, cpe:/h:siemens:scalance_w788-1rr:-, cpe:/h:siemens:scalance_w788-2pro:-, cpe:/h:siemens:scalance_w788-2rr:-

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 8/1/2013

Vulnerability Publication Date: 8/1/2013

Reference Information

CVE: CVE-2013-4652