CVE-2013-5709
high
CVSS v3
—
CVSS v2
8.3
VIR risk
8.3
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: cve@mitre.org — http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf
References
- http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf
- http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf
CWEs
CWE-189
Verify integrity in audit chain (admin only). AS-IS.