CVE-2021-34594
04.11.2021, 10:15
TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traversal that allow administrators to create or delete any files on the system.
| Vendor | Product | Version |
|---|---|---|
| beckhoff | tf6100_firmware | 𝑥 < 4.3.48.0 |
| beckhoff | ts6100_firmware | 𝑥 < 4.3.48.0 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration
- CWE-23 - Relative Path TraversalThe software uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The software 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 software 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.