#VU58086 Improper Null Termination in Siemens products - CVE-2021-31886

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Main Vulnerability Database Vulnerabilities #VU58086

#VU58086 Improper Null Termination in Siemens products - CVE-2021-31886

Published: November 10, 2021


Vulnerability identifier: #VU58086
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-31886
CWE-ID: CWE-170
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Nucleus NET
Nucleus Source Code
Capital VSTAR
Nucleus ReadyStart
Software vendor:
Siemens

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to improper null termination when the FTP server does not properly validate the length of the “USER” command. A remote attacker can execute arbitrary code on the target system.


Remediation

Install updates from vendor's website.

External links