SB2019091117 - Denial of service in SIMATIC TDC CP51M1



SB2019091117 - Denial of service in SIMATIC TDC CP51M1

Published: September 11, 2019

Security Bulletin ID SB2019091117
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Input validation error (CVE-ID: CVE-2019-10937)

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:U/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 when processing UDP traffic. A remote attacker can send a specially crafted UDP packet, affect the UDP communication and cause a denial of service condition on the target system.


Remediation

Install update from vendor's website.