Netcore Router FirmwareOperating system · Netis Systems

CVE-2023-0114

MEDIUM · 5.5 CVSS v3.1 Published 2023-01-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability was found in Netis Netcore Router. It has been rated as problematic. Affected by this issue is some unknown functionality of the file param.file.tgz of the component Backup Handler. The manipulation leads to cleartext storage in a file or on disk. Local access is required to approach this attack. The identifier of this vulnerability is VDB-217592.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A cleartext storage vulnerability exists in the Netis Netcore Router's backup handler. When the router creates a backup file (param.file.tgz), sensitive configuration data including credentials is stored in an unencrypted archive on disk. An attacker with local access to the device or obtained backup files can extract sensitive information in cleartext without any decryption effort.

MitigationEnable encryption for backup files in the router's backup handler to ensure configuration data and credentials are stored in encrypted form rather than cleartext. Restrict physical and logical access to the router and its backup storage locations.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Netcore Router FirmwareOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Locate router backup files
    Search the router's filesystem for the backup archive file typically named 'param.file.tgz' or similar .tgz/.tar.gz backup files.
    Affected if If backup files exist in the router's storage or web accessible directories.
  2. Extract and inspect the backup archive
    Use standard archive tools (tar, gzip, or the router's web interface) to extract the contents of the backup file to a secure location for inspection.
    Affected if If the archive extracts successfully without requiring a decryption password.
  3. Check for cleartext credentials in configuration
    Search extracted configuration files (particularly config.xml, system.conf, or similar configuration files) for username, password, or credential-related fields.
    Affected if If credentials, admin passwords, or sensitive configuration data appear in plain text rather than hashed or encrypted.
  4. Verify backup encryption status
    If the router administration interface provides an option for encrypted backups, check whether that option is enabled for newly created backups.
    Affected if If encrypted backups are not enabled or not available as an option.

If backup files (param.file.tgz) exist on the router and contain readable credentials or sensitive configuration data in plain text without requiring decryption, the environment is affected by this vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Enable encryption for backup files in the router's backup handler to ensure configuration data and credentials are stored in encrypted form rather than cleartext. Restrict physical and logical access to the router and its backup storage locations.

Fix this in Netcore Router Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,290
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-0114 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-0114 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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