SB2021111815 - Multiple vulnerabilities in Siemens SIMATIC WinCC and SIMATIC PCS 

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Main Vulnerability Database SB2021111815

SB2021111815 - Multiple vulnerabilities in Siemens SIMATIC WinCC and SIMATIC PCS

Published: November 18, 2021

Security Bulletin ID SB2021111815
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Path traversal (CVE-ID: CVE-2021-40358)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote authenticated attacker can send a specially crafted HTTP request and read, write or delete critical files.


2) Path traversal (CVE-ID: CVE-2021-40359)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.


3) Inclusion of Sensitive Information in Log Files (CVE-ID: CVE-2021-40364)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to software stores sensitive information into log files. A local user can read the log files and gain access to sensitive data.


Remediation

Install update from vendor's website.

References