CVE-2014-2251
high
CVSS v3
—
CVSS v2
8.3
VIR risk
8.3
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: cve@mitre.org — http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-456423.pdf
References
- http://ics-cert.us-cert.gov/advisories/ICSA-14-073-01
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-456423.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf
- http://ics-cert.us-cert.gov/advisories/ICSA-14-073-01
- http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-456423.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf
Verify integrity in audit chain (admin only). AS-IS.