CVE-2014-2251

2014-03-1614:06:45

mitre

web.nvd.nist.gov

siemens

simatic s7-1500

cpu plc

firmware

vulnerability

cryptographic protection

nvd

cve-2014-2251

CVSS2

8.3

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

AI Score

6.7

Confidence

Low

EPSS

0.006

Percentile

77.7%

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

VendorProductVersionCPE
siemenssimatic_s7-1500_cpu_firmware*cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:*:*:*:*:*:*:*:*
siemenssimatic_s7-1500_cpu_firmware1.0.1cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.0.1:*:*:*:*:*:*:*
siemenssimatic_s7-1500_cpu_firmware1.1.0cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.0:*:*:*:*:*:*:*
siemenssimatic_s7-1500_cpu_firmware1.1.1cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.1:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
siemens	simatic_s7-1500_cpu_firmware	*	cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware::::::::
siemens	simatic_s7-1500_cpu_firmware	1.0.1	cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.0.1:::::::*
siemens	simatic_s7-1500_cpu_firmware	1.1.0	cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.0:::::::*
siemens	simatic_s7-1500_cpu_firmware	1.1.1	cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.1:::::::*