attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
Phoenix Contact PLCnext Engineer
Classified as
CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))
Affected Products, Subsystems & Sectors
Vendor
Product
Affected Versions
Patch Status
Phoenix Contact
PLCnext Engineer
Subsystems
General OT
Sectors
Multiple
What to Know
The PFI plugin framework deployment routine does not validate path components when extracting archive entries to the local plugin repository. Archive entries containing relative path segments such as '..' are not rejected, allowing an unauthenticated local attacker to write files outside the plugin repository to arbitrary locations accessible with the current user's permissions which could result in full system compromise. (NVD)
What to Do
Monitor Phoenix Contact's web page for any future patch releases. See vendor advisory link below.