CVE-2021-27473: rockwell automation connected components workbench Path Traversal

Vulnerability summary

CVE-2021-27473 is a high (CVSS 8.2) Path Traversal vulnerability in rockwell automation connected components workbench. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55.4% of scored vulnerabilities.

Timeline

1. 23-03-2022
   PublishedVulnerability first disclosed.
2. 16-04-2025
   Last modifiedVulnerability information updated.

Description

Rockwell Automation Connected Components Workbench v12.00.00 and prior does not sanitize paths specified within the .ccwarc archive file during extraction. This type of vulnerability is also commonly referred to as a Zip Slip. A local, authenticated attacker can create a malicious .ccwarc archive file that, when opened by Connected Components Workbench, will allow the attacker to gain the privileges of the software. If the software is running at SYSTEM level, the attacker will gain admin level privileges. User interaction is required for this exploit to be successful.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.