8.5

CVE-2021-34594

Beckhoff: Relative path traversal vulnerability through TwinCAT OPC UA Server

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Beckhoff ≫ Tf6100 Firmware Version < 4.3.48.0
   Beckhoff ≫ Tf6100 Version-
Beckhoff ≫ Ts6100 Firmware Version < 4.3.48.0
   Beckhoff ≫ Ts6100 Version-
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.09% 0.61
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.5 1.2 5.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
nvd@nist.gov 8.5 8 9.2
AV:N/AC:L/Au:S/C:N/I:C/A:C
info@cert.vde.com 6.5 1.2 5.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CWE-22 Improper 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.

CWE-23 Relative Path Traversal

The product 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.

https://cert.vde.com/en/advisories/VDE-2021-051/
Third Party Advisory
Mitigation