Siemens SCALANCE Multiple Switches Authentication Bypass

critical Nessus Network Monitor Plugin ID 720042

Synopsis

The integrated web server on Siemens SCALANCE X-200 switches and X-200IRT switches does not properly enforce authentication requirements.

Description

The integrated web server on Siemens SCALANCE X-200 switches with firmware before 4.5.0 and X-200IRT switches with firmware before 5.1.0 does not properly enforce authentication requirements, which allows remote attackers to perform administrative actions via requests to the management interface.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-176087.pdf,https://ics-cert.us-cert.gov/advisories/ICSA-13-274-01

Plugin Details

Severity: Critical

ID: 720042

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

Vulnerability Information

Patch Publication Date: 10/3/2013

Vulnerability Publication Date: 10/3/2013

Reference Information

CVE: CVE-2013-5944