Path Traversal in Zkteco Biotime

CVE-2023-38951

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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.033 (87.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-38951?
CVE-2023-38951 is a critical-severity vulnerability in Zkteco Biotime, classified under Path Traversal. CVSS score: 9.8/10. Published 2023-08-03.
How severe is CVE-2023-38951?
Critical severity. CVSS v3 base score is 9.8 out of 10.