CVE-2013-5709

critical

Description

The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.

References

https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf

http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf

http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01

Details

Source: Mitre, NVD

Published: 2013-09-17

Updated: 2020-02-10

Risk Information

CVSS v2

Base Score: 8.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:C

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical