What’s Vulnerable › Vulnerabilities

CVE-2023-38951

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-03 · updated 2026-07-09
• Weakness: CWE-22

Description

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.

Affected products

• ZKTeco BioTime: 8.5.5

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
• https://claroty.com/team82/disclosure-dashboard/cve-2023-38951
• https://sploitus.com/exploit?id=PACKETSTORM:177859

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