SB2021021127 - Improper Authentication in Siemens SIMATIC WinCC and PCS 7
Published: February 11, 2021
Security Bulletin ID
SB2021021127
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2020-10048)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to bypass authentication process.
The vulnerability exists due to an insecure password verification process. A local attacker can access to protected content without authentication.
Remediation
Install update from vendor's website.