U Lock FirmwareOperating system · Sguda

CVE-2022-46308

HIGH · 8.8 CVSS v3.1 Published 2023-06-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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
SGUDA U-Lock central lock control service’s user management function has incorrect authorization. A remote attacker with general user privilege can exploit this vulnerability to call privileged APIs to access, modify and delete user information.

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

The SGUDA U-Lock central lock control service contains an incorrect authorization vulnerability in its user management function. A remote attacker with standard user privileges can invoke privileged APIs to bypass authorization controls, allowing unauthorized access, modification, and deletion of user information.

MitigationImplement proper role-based authorization checks in all user management APIs to ensure only privileged users can access sensitive operations. Validate user permissions before executing any privileged actions.

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
U Lock 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
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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. Identify if SGUDA U-Lock service is in use
    Search your asset inventory, network scans, or installed systems for the SGUDA U-Lock central lock control service or firmware. Check for services, processes, or devices associated with 'U-Lock', 'Sguda', or 'central lock control'.
    Affected if The SGUDA U-Lock service or firmware is found in your environment
  2. Locate user management API endpoints
    If the service is present, enumerate API endpoints related to user management. Look for endpoints that handle user creation, modification, deletion, or privilege assignment. Common patterns include /user, /users, /usermanagement, /admin/user, or similar paths.
    Affected if User management API endpoints are accessible for the SGUDA U-Lock service
  3. Verify standard user account exists
    Create or identify a standard (non-privileged) user account on the SGUDA U-Lock system. Confirm this user has only basic privileges and does not hold administrative roles.
    Affected if A standard user account with limited privileges can be created or identified
  4. Test authorization on privileged user operations
    Using the standard user account credentials, attempt to invoke APIs that should require elevated privileges, such as creating new users, modifying other users' information, deleting users, or changing user roles or permissions.
    Affected if Standard users can successfully invoke APIs to access, modify, or delete other user information without receiving authorization errors
  5. Check for role-based authorization enforcement
    Review the user management API responses and server logs when standard users attempt privileged operations. Verify whether the service properly rejects unauthorized requests with appropriate error codes (403 Forbidden, 401 Unauthorized) or properly validates user roles before executing sensitive operations.
    Affected if The service allows standard users to perform privileged user management operations without proper role validation

You are affected if the SGUDA U-Lock central lock control service is deployed in your environment and standard users can bypass authorization to access privileged user management APIs.

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

Implement proper role-based authorization checks in all user management APIs to ensure only privileged users can access sensitive operations. Validate user permissions before executing any privileged actions.

Fix this in U Lock Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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Scan for this in your stack

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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-2022-46308 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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