SB2021051307 - Missing Authentication for Critical Function in Siemens SINAMICS Medium Voltage Products
Published: May 13, 2021
Security Bulletin ID
SB2021051307
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing Authentication for Critical Function (CVE-ID: CVE-2021-31337)
CWE-ID: CWE-306 - Missing Authentication for Critical Function
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the Telnet service of the SIMATIC HMI Comfort Panels system component does not require authentication. A remote attacker can gain access to the device.
Remediation
Install update from vendor's website.