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CVE-2023-3938

Bypassing ZkTeco-based OEM devices/ZKTeco biometric authentication system via SQLi in QR code

No known exploitation. EPSS puts it in the 37th percentile. A vendor fix is available.

CVSS 3.14.6MediumEPSS percentile37th0.4% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFixVendor fixNo build named by the sources

Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

  • ZkTeco-based OEM devices with firmware ZAM170-NF-1.8.25-7354-Ver1.0.0Affected: ZAM170-NF-1.8.25-7354-Ver1.0.0Upgrade to: not statedStated by: CVE record
  • ZKTECO CO., LTD Smartec ST-FR041MEAffected: ZAM170-NF-1.8.25-7354-Ver1.0.0Upgrade to: not statedStated by: BDU
  • ZKTECO CO., LTD Smartec ST-FR043Affected: ZAM170-NF-1.8.25-7354-Ver1.0.0Upgrade to: not statedStated by: BDU
  • ZKTECO CO., LTD ZkTeco ProFace XAffected: ZAM170-NF-1.8.25-7354-Ver1.0.0Upgrade to: not statedStated by: BDU

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in ZkTeco-based OEM devices allows an attacker to authenticate under any user from the device database. This issue affects  ZkTeco-based OEM devices (ZkTeco ProFace X, Smartec ST-FR043, Smartec ST-FR041ME and possibly others) with the ZAM170-NF-1.8.25-7354-Ver1.0.0 and possibly others.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS37th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.4% chance of exploitation activity in the next 30 days, which ranks it in the 37th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

5 events over 184 days, from the signal feeds we watch.

  1. Patch availablerecord updated
  2. Publishedweakness classified, att&ck mapped

Affected products

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Scored 4.6 by NVD.

How it is reached

  • Attack Vector PhysicalRequires physical access to the device
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity NoneNo integrity impact
  • Availability NoneNo availability impact

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 1 more reference. See all after sign-in

Watch the software you run.

My Stack ranks new CVEs for your products by real-world exploitation, so the next serious one reaches you without reading every advisory.

We'll flag the next CVE, public exploit or patch for Smartec ST-FR041ME, not every advisory.