CVE-2021-31337 Information

Description

The Telnet service of the SIMATIC HMI Comfort Panels system component in affected products does not require authentication which may allow a remote attacker to gain access to the device if the service is enabled. Telnet is disabled by default on the SINAMICS Medium Voltage Products (SINAMICS SL150: All versions SINAMICS SM150: All versions SINAMICS SM150i: All versions).

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8