CVE-2023-2917: rockwell automation thinmanager thinserver Improper Input Validation

Vulnerability summary

CVE-2023-2917 is a critical (CVSS 9.8) Improper Input Validation vulnerability in rockwell automation thinmanager thinserver. EPSS estimates a 72.17% chance of exploitation in the next 30 days, higher than 99.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 17-08-2023
   PublishedVulnerability first disclosed.
2. 08-10-2024
   Last modifiedVulnerability information updated.

Description

The Rockwell Automation Thinmanager Thinserver is impacted by an improper input validation vulnerability.  Due to an improper input validation, a path traversal vulnerability exists, via the filename field, when the ThinManager processes a certain function. If exploited, an unauthenticated remote attacker can upload arbitrary files to any directory on the disk drive where ThinServer.exe is installed.  A malicious user could exploit this vulnerability by sending a crafted synchronization protocol message and potentially gain remote code execution abilities.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
• 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.