CVE-2021-34594 (GCVE-0-2021-34594)

Vulnerability from cvelistv5 – Published: 2021-11-04 09:50 – Updated: 2024-09-16 22:03
VLAI?
Title
Beckhoff: Relative path traversal vulnerability through TwinCAT OPC UA Server
Summary
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.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CWE
  • CWE-23 - Relative Path Traversal
Assigner
References
Impacted products
Vendor Product Version
Beckhoff Automation TwinCAT OPC UA Server Affected: TF6100 , < 4.3.48.0 (custom)
Affected: TS6100 , < 4.3.48.0 (custom)
Affected: TcOpcUaServer version , < 3.2.0.19423 (custom)
Create a notification for this product.
Credits
Beckhoff Automation thanks Johannes Olegård, Emre Süren, and Robert Lagerström for reporting the issue and for support and efforts with the coordinated disclosure.
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.