SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2013-5709

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…

HIGH 8.3EPSS 2.99%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 2.0
8.3 HIGHAV:N/AC:M/Au:N/C:P/I:P/A:C
EPSS
2.99% probability · 87th percentile
CISA KEV
Not listed
Weakness
CWE-189
Affected
siemens/scalance x-200 series firmware · siemens/scalance x-200 · siemens/scalance x-200rna · siemens/scalance x200-4p irt · siemens/scalance x201-3p irt · siemens/scalance x202-2irt · siemens/scalance x202-2p irt · siemens/scalance x204irt · siemens/scalance xf-200
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.