Missing Authentication for Critical Function in Siemens products - CVE-2019-13933

 

Missing Authentication for Critical Function in Siemens products - CVE-2019-13933

Published: January 15, 2020


Vulnerability identifier: #VU24311
CSH Severity: High
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-13933
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to violate access-control rules.

The vulnerability exists due to the affected system contains an authentication bypass vulnerability. A remote attacker can send a specially crafted GET request to specific uniform resource locator on the web configuration interface of the device and obtain sensitive information or change the device configuration.


Affected software

SCALANCE X-200RNA
SCALANCE X-300
SCALANCE X-408

How to mitigate CVE-2019-13933

Install updates from vendor's website.

SCALANCE X-300 - update to 4.1.3
SCALANCE X-408 - update to 4.1.3

External References

Related Security Bulletins