CVE-2014-2251 Information

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.

Reference

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