Security readout for executives and security teams
Plain-English summary
ZKTeco ZKBioSecurity 3.0 has a path handling flaw that can let an attacker read files the application should protect. The main business risk is exposure of sensitive configuration, source, or application files. Public exploit references exist, but the provided sources do not show known active exploitation.
Executive priority
Prioritize discovery and access restriction, especially for exposed physical security or access-control environments. This is not rated critical, but confidentiality loss could reveal credentials, configuration, or application internals. Escalate if the product is externally reachable or protects sensitive facilities.
Technical view
CVE-2016-20029 affects ZKTeco ZKBioSecurity version 3.0.1.0_R_230. It is described as file path manipulation allowing arbitrary local resource retrieval by modifying path parameters. CVSS 4.0 is 6.9 with high confidentiality impact and no integrity or availability impact. The CVSS vector lists local attack vector and no privileges required.
Likely exposure
Exposure is most relevant where ZKBioSecurity 3.0.1.0_R_230 is installed and attackers can reach the vulnerable file retrieval functionality. Internet-facing or broadly accessible deployments increase concern. The provided data does not identify other affected versions.
Exploitation context
Exploit references are listed by Packet Storm and Exploit-DB, indicating public technical material exists. However, the source bundle does not show CISA KEV listing or other evidence of active exploitation. Treat this as publicly known and potentially testable, not confirmed exploited in the wild.
Researcher notes
Evidence is based on CVE, VulnCheck, and third-party advisories. The affected version is specifically 3.0.1.0_R_230. No source in the bundle names a patch. Avoid assuming broader version impact or active exploitation without additional vendor or threat intelligence confirmation.
Mitigation direction
- Inventory ZKTeco ZKBioSecurity deployments and identify version 3.0.1.0_R_230.
- Check ZKTeco guidance for fixed versions or vendor-supported mitigations.
- Restrict network access to ZKBioSecurity management interfaces.
- Limit access to trusted administration networks or VPN users.
- Review exposed file retrieval endpoints and application access controls.
- Monitor logs for unusual file access or path manipulation attempts.
Validation and detection
- Confirm the installed ZKBioSecurity version on each server.
- Verify whether vulnerable file retrieval functionality is reachable by untrusted users.
- Review web and application logs for abnormal path parameter patterns.
- Check whether sensitive configuration files are accessible through the application.
- Document compensating controls if no vendor patch is available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CWE-276: Exact CWE lookup
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Open ATT&CK lookupCVE-2016-20029 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source materials
- CVE List V5 sourceCVE List V5
- Zero Science Lab DisclosureCVE reference · third-party-advisory
- CXSecurityCVE reference · third-party-advisory
- IBM X-Force ExchangeCVE reference · vdb-entry
- Packet Storm SecurityCVE reference · exploit
- ReferenceCVE reference · exploit
- VulnCheck Advisory: ZKTeco ZKBioSecurity 3.0 File Path Manipulation VulnerabilityCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incorrect Default Permissions
Incorrect Default Permissions represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.