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CVE-2013-5709

Published: Sep 17, 2013Updated: Apr 29, 2026 Sources: CVE List NVD csafCWE-189
NVD MITRE
8.3CVSSHIGH
EPSS Score
3.0%
Top 14.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.

CVSS Vector Breakdown

AV:NAC:MAu:NC:PI:PA:C
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:PConfidentiality
Partial
I:PIntegrity
Partial
A:CAvailability
Complete
Open in CVSS calculator →

Weaknesses

CWE-189

Affected Products

n/an/a
scalance x-200 series firmwaresiemensICS / OT / IoT
scalance x-200siemensICS / OT / IoT
scalance x-200rnasiemensICS / OT / IoT
scalance x200-4p irtsiemensICS / OT / IoT
siemenscommercialDEEnterprise Softwareaka siemens ag
and 5 more affected products View all →

Exploitability

Official Patch Available

References

http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf
siemens.com
http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01
ics-cert.us-cert.gov
https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf
cert-portal.siemens.com
and 10 more references View all →

Timeline

Published
Sep 17, 2013
Last Updated
Apr 29, 2026

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