Siemens SCALANCE Privilege Escalation (CVE-2013-3633)

high Tenable OT Security Plugin ID 500736


The remote OT asset is affected by a vulnerability.


A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (Versions < V5.0.0 for CVE-2013-3633 and versions < V4.5.0 for CVE-2013-3634), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.1.0). The user privileges for the web interface are only enforced on client side and not properly verified on server side. Therefore, an attacker is able to execute privileged commands using an unprivileged account.

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The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at

Siemens recommends updating these products:

- SCALANCE X-200 switch family: Update to v5.0.0 (released in 2013), or any later version (currently v5.2.4)
- SCALANCE X-200IRT switch family: Update to v5.1.0 (released in 2013), or any later version (currently v5.4.2)

If it is not possible to install the firmware update, mitigate the SNMP vulnerability by either disabling SNMP or completely disabling read-write access.

As a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens’

Operational Guidelines for Industrial Security and to follow the recommendations in the product manuals.

Additional information on industrial security by Siemens can be found at:

For more information on this vulnerability and more detailed mitigation instructions, please see Siemens security advisory SSA-170686 at the following location:

See Also

Plugin Details

Severity: High

ID: 500736

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 1/25/2023

Updated: 9/6/2023

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: High

Base Score: 8

Temporal Score: 5.9

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

CVSS Score Source: CVE-2013-3633

Vulnerability Information

CPE: cpe:/h:siemens:scalance_x200-4p_irt:-, cpe:/h:siemens:scalance_x201-3p_irt:-, cpe:/h:siemens:scalance_x201-3p_irt:-:-:pro, cpe:/h:siemens:scalance_x202-2irt:-, cpe:/h:siemens:scalance_x202-2p_irt:-, cpe:/h:siemens:scalance_x202-2p_irt:-:-:pro, cpe:/h:siemens:scalance_x204irt:-, cpe:/h:siemens:scalance_x204irt:-:-:pro, cpe:/h:siemens:scalance_xf204irt:-, cpe:/o:siemens:scalance_x200irt_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 5/24/2013

Vulnerability Publication Date: 5/24/2013

Reference Information

CVE: CVE-2013-3633

CWE: 264