Vulnerability Description
The random-number generator on Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 does not have sufficient entropy, which makes it easier for remote attackers to defeat cryptographic protection mechanisms and hijack sessions via unspecified vectors.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Simatic S7-1500 Cpu Firmware | <= 1.1.2 |
References
- http://ics-cert.us-cert.gov/advisories/ICSA-14-073-01US Government Resource
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_adviPatchVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf
- http://ics-cert.us-cert.gov/advisories/ICSA-14-073-01US Government Resource
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_adviPatchVendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf
FAQ
What is CVE-2014-2251?
CVE-2014-2251 is a vulnerability with a CVSS score of 8.3 (HIGH). The random-number generator on Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 does not have sufficient entropy, which makes it easier for remote attackers to defeat cryptographic p...
How severe is CVE-2014-2251?
CVE-2014-2251 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2014-2251?
Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic S7-1500 Cpu Firmware.