PT-2023-4122 · Zkteco · Zkteco Biotime

Published 2023-08-01 · Updated 2025-05-24 · CVE-2023-38951

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ZKTeco BioTime version 8.5.5

Description The issue is related to a path traversal vulnerability in the implementation of the SFTP protocol, which can be exploited by an attacker to write arbitrary files. This can be achieved by using a malicious SFTP configuration.

Recommendations For ZKTeco BioTime version 8.5.5, consider restricting access to the SFTP configuration to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid using the SFTP protocol for file transfers until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Relative Path Traversal

Path traversal

Weakness Enumeration

CWE-23

CWE-22

Related Identifiers

BDU:2023-04431

CVE-2023-38951

Affected Products

Zkteco Biotime

References · 16

• 🔥 https://sploitus.com/exploit?id=PACKETSTORM:177859 · Exploit
• https://bdu.fstec.ru/vul/2023-04431 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-38951 · Security Note
• https://osv.dev/vulnerability/CVE-2023-38951 · Vendor Advisory
• https://github.com/omair2084/biotime-rce-8.5.5/blob/main/biotime_enum.py · Note
• https://t.me/cvenotify/123019 · Telegram Post
• https://t.me/aptreports/18276 · Telegram Post
• https://krashconsulting.com/fury-of-fingers-biotime-rce · Note
• https://t.me/true_secator/7008 · Telegram Post
• https://fortinet.com/content/dam/fortinet/assets/reports/report-incident-response-middle-east.pdf · Note
• https://zkteco.com/en/announcement · Note
• https://t.me/cvenotify/123536 · Telegram Post
• https://zkteco.com/en/ZKBio_Time/ZKBioTime#Download · Note
• http://zkteco.com · Note
• https://claroty.com/team82/disclosure-dashboard/cve-2023-38951 · Note