#VU70376 Input validation error in Siemens products - CVE-2021-44695
Published: December 15, 2022
Vulnerability identifier: #VU70376
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-44695
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SIMATIC ET 200SP Open Controller CPU 1515SP PC2
SIMATIC S7-PLCSIM Advanced
SIMATIC S7-1500
TIM 1531 IRC
SIPLUS TIM 1531 IRC
SIMATIC Drive Controller
SIMATIC S7-1200 CPU family
SIMATIC S7-1500 CPU
SIMATIC ET 200SP Open Controller CPU 1515SP PC2
SIMATIC S7-PLCSIM Advanced
SIMATIC S7-1500
TIM 1531 IRC
SIPLUS TIM 1531 IRC
SIMATIC Drive Controller
SIMATIC S7-1200 CPU family
SIMATIC S7-1500 CPU
Software vendor:
Siemens
Siemens
Description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote administrator can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.