Douro FirmwareOperating system · Lamassu

CVE-2024-0676

HIGH · 7.1 CVSS v3.1 Published 2024-01-30
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
73/100
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
Weak password requirement vulnerability in Lamassu Bitcoin ATM Douro machines, in its 7.1 version , which allows a local user to interact with the machine where the application is installed, retrieve stored hashes from the machine and crack long 4-character passwords using a dictionary attack.

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 · high confidence

The Lamassu Bitcoin ATM Douro v7.1 has weak password requirements allowing only 4-character passwords, enabling local attackers to retrieve stored password hashes from the machine and crack them using dictionary attacks.

MitigationEnforce strong password policies with minimum 12+ character lengths, complexity requirements, and implement salted hashing (e.g., bcrypt, Argon2) for stored credentials.

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
Douro FirmwareOperating system
Affected:= 7.1
Douro Ii FirmwareOperating system
Affected:= 7.1

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
High
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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. Identify the firmware version
    Check the Lamassu Douro device firmware version through the admin interface, system settings, or boot logs. Look for a version string matching 7.1 or verify the exact version number reported by the system.
    Affected if The firmware version is Lamassu Douro Firmware = 7.1 or Lamassu Douro Ii Firmware = 7.1 specifically.
  2. Review password policy configuration
    Access the system configuration or admin settings where password requirements are defined. Look for the minimum password length setting.
    Affected if The minimum password length is set to 4 characters, which allows weak passwords.
  3. Examine password storage mechanism
    Locate where user credentials are stored on the system (e.g., configuration files, user databases, or credential storage). Identify the hashing algorithm used for password storage.
    Affected if Passwords are stored using weak or unsalted hashing (e.g., MD5, SHA1 without salt) rather than strong salted algorithms like bcrypt or Argon2.
  4. Verify local access controls
    Check file system permissions and access controls on password hash storage locations. Determine if local unauthorized users can read credential files.
    Affected if Local users or processes can access and retrieve the password hash file without elevated privileges.

You are affected if the device runs Lamassu Douro Firmware version 7.1 with a 4-character minimum password policy and stores credentials using weak hashing accessible to local attackers.

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

Enforce strong password policies with minimum 12+ character lengths, complexity requirements, and implement salted hashing (e.g., bcrypt, Argon2) for stored credentials.

Fix this in Douro Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,480
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Scan for this in your stack

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dbcve dependency scanner

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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-2024-0676 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
  • No weaponised exploit code, or anything meant to cause harm
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