SB2019041713 - Denial of service in Siemens Industrial Products

Description

This security bulletin contains information about 1 vulnerability.

1) Input validation error (CVE-ID: CVE-2019-6575)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the OPC UA server. A remote attacker can send a specially crafted packet on port 4840/tcp and cause a denial of service condition on the OPC communication or crash the target device.

This vulnerability affects the following products:

Remediation

Install update from vendor's website.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-307392.pdf