CVE-2013-5709
Siemens SCALANCE X-200 Series Firmware < 5.0.0 - Session Hijacking via Insufficient Entropy in Authentication
Title source: llmDescription
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.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf
US Government Resource x_refsource_misc
http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01
Vendor Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf
Scores
EPSS
0.0052
EPSS Percentile
67.1%
Details
CWE
CWE-189
Status
published
Products (10)
siemens/scalance_x-200
siemens/scalance_x-200_series_firmware
4.3
siemens/scalance_x-200_series_firmware
< 4.4
siemens/scalance_x-200rna
siemens/scalance_x200-4p_irt
siemens/scalance_x201-3p_irt
(2 CPE variants)
siemens/scalance_x202-2irt
siemens/scalance_x202-2p_irt
(2 CPE variants)
siemens/scalance_x204irt
(2 CPE variants)
siemens/scalance_xf-200
Published
Sep 17, 2013
Tracked Since
Feb 18, 2026