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TI-2023-20211 Aliases CVE-2023-38951GHSA-vc5p-9c2v-8jwq

ZKTeco BioTime 8.5.5 through 9.x before 9.0.1 (20240617.19506) allows authenticated…

Priority HIGH 82CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.03257 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zkteco:biotime:8.5.5:*:*:*:*:*:*:*8.5.5VulnerableZKTeco
  • cpe:2.3:a:zkteco:biotime:8.5.5:*:*:*:*:*:*:* Versions 8.5.5 Vulnerable ·ZKTeco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-38951
  2. 2026-10-03 Alias added: GHSA-vc5p-9c2v-8jwq

References

Advisory 1

Other 4

  • TI-2023-20210 A path traversal vulnerability in the iclock API of ZKTeco BioTime v8.5.5 allows… KEVCVSS 3.1HIGH 7.5
  • TI-2023-27950 An issue in ZKTeco BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information. CVSS 3.1HIGH 7.5
  • TI-2023-20212 Insecure access control in ZKTeco BioTime through 9.0.1 allows authenticated attackers to… CVSS 3.1HIGH 7.5
  • TI-2024-12975 ZKTeco BioTime default password CVSS 4.0MEDIUM 6.9
  • TI-2022-18297 Zkteco BioTime < 8.5.3 Build:20200816.447 is vulnerable to Incorrect Access Control via… CVSS 3.1MEDIUM 6.8
  • TI-2022-12673 ZKTeco BioTime 8.5.4 is missing authentication on folders containing employee photos… CVSS 3.1MEDIUM 5.3
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences