CVE-2014-2250

The random-number generator on Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 does not have sufficient entropy, which makes it easier for remote attackers to defeat cryptographic protection mechanisms and hijack sessions via unspecified vectors, a different vulnerability than CVE-2014-2251.

Score

CVSS 2.0 8.3 High

Status

Modified - cve@mitre.org

Published

2014-03-24

Last modified

2024-08-06

Weaknesses

CWE-310

Affected products

• Simatic S7 Cpu-1211c (Siemens)
• Simatic S7 Cpu 1200 Firmware (Siemens)
• Simatic S7 Cpu 1212c (Siemens)
• Simatic S7 Cpu 1214c (Siemens)
• Simatic S7 Cpu 1215c (Siemens)
• Simatic S7 Cpu 1217c (Siemens)

References

• http://ics-cert.us-cert.gov/advisories/ICSA-14-079-02
• http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-654382.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-654382.pdf