Vulnerability Details CVE-2014-2251
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 74.6%
CVSS Severity
CVSS v2 Score 8.3
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
Products affected by CVE-2014-2251
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cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:*
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cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.0.1
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cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.0
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cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.1