#VU21970 Improper access control in Siemens products - CVE-2019-10943

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU21970

#VU21970 Improper access control in Siemens products - CVE-2019-10943

Published: October 21, 2019


Vulnerability identifier: #VU21970
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2019-10943
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SIMATIC S7-PLCSIM Advanced
SIMATIC S7-1500 Software Controller
SIMATIC ET 200SP Open Controller
SIMATIC S7-1500 CPU
SIMATIC S7-1200
Software vendor:
Siemens

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker with network access to port 102/tcp can modify the user program stored on the affected devices such that the source code differs from the actual running code and gain unauthorized access to the application.

This vulnerability affects the following products:

  • SIMATIC ET 200SP Open Controller CPU 1515SP PC (All versions)
  • SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (All versions)
  • SIMATIC S7-1200 CPU family (All versions >= V4.0)
  • SIMATIC S7-1500 CPU family (All versions)
  • SIMATIC S7-1500 Software Controller (All versions)
  • SIMATIC S7-PLCSIM Advanced (All versions)

Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links