Home/CVE/The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does n
CVE

CVE-2013-5709

The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does n

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.

HIGH · CVSS 8.3 EPSS 0.00523
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Affected Products & Versions

10
siemens scalance x-200 series firmware<= 4.4
siemens scalance x-200 series firmwareall versions
siemens scalance x-200all versions
siemens scalance x-200rnaall versions
siemens scalance x200-4p irtall versions
siemens scalance x201-3p irtall versions
siemens scalance x202-2irtall versions
siemens scalance x202-2p irtall versions
▣

Scoring & Timeline

8.3
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:P/I:P/A:C
Published to NVD17 Sep 2013 · 12:04 PM
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2013-icsa-13-254-01
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01US Government Resource
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf
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