CVE-2023-38951

9.8 criticalEPSS 3.3%

ZKTeco BioTime 8.5.5 through 9.x before 9.0.1 (20240617.19506) allows authenticated attackers to create or overwrite arbitrary files on the server via crafted requests to /base/sftpsetting/ endpoints that abuse a path traversal issue in the Username field and a lack of input sanitization on the SSH Key field. Overwriting specific files may lead to arbitrary code execution as NT AUTHORITY\SYSTEM.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 3.3% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2023-08-03
Modified: 2026-07-09
Record from: the NVD, synced 2026-10-19

Affected

zkteco:biotime

References

https://claroty.com/team82/disclosure-dashboard/cve-2023-38951
https://github.com/omair2084/biotime-rce-8.5.5/blob/main/biotime_enum.py
https://krashconsulting.com/fury-of-fingers-biotime-rce/
https://www.zkteco.com/en/ZKBio_Time/ZKBioTime#Download
https://www.zkteco.com/en/announcement

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