CVE-2014-2251

2014-03-1614:06:45

[email protected]

web.nvd.nist.gov

siemens

simatic s7-1500

cpu plc

firmware

vulnerability

cryptographic protection

nvd

cve-2014-2251

8.3 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:P/I:P/A:C

6.7 Medium

AI Score

Confidence

Low

0.006 Low

EPSS

Percentile

77.8%

JSON

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.

Affected configurations

NVD

Node

siemenssimatic_s7-1500_cpu_firmwareRange≤1.1.2

siemenssimatic_s7-1500_cpu_firmwareMatch1.0.1

siemenssimatic_s7-1500_cpu_firmwareMatch1.1.0

siemenssimatic_s7-1500_cpu_firmwareMatch1.1.1

CPENameOperatorVersion
siemens:simatic_s7-1500_cpu_firmwaresiemens simatic s7-1500 cpu firmwarele1.1.2
siemens:simatic_s7-1500_cpu_firmwaresiemens simatic s7-1500 cpu firmwareeq1.0.1
siemens:simatic_s7-1500_cpu_firmwaresiemens simatic s7-1500 cpu firmwareeq1.1.0
siemens:simatic_s7-1500_cpu_firmwaresiemens simatic s7-1500 cpu firmwareeq1.1.1

CPE	Name	Operator	Version
siemens:simatic_s7-1500_cpu_firmware	siemens simatic s7-1500 cpu firmware	le	1.1.2
siemens:simatic_s7-1500_cpu_firmware	siemens simatic s7-1500 cpu firmware	eq	1.0.1
siemens:simatic_s7-1500_cpu_firmware	siemens simatic s7-1500 cpu firmware	eq	1.1.0
siemens:simatic_s7-1500_cpu_firmware	siemens simatic s7-1500 cpu firmware	eq	1.1.1