CVE-2024-43812
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 · uneditedKieback & Peter's DDC4000 series has an insufficiently protected credentials vulnerability, which may allow an unauthenticated attacker with access to /etc/passwd to read the password hashes of all users on the system.
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 confidenceThe DDC4000 series stores password hashes in /etc/passwd which is world-readable, allowing any user or attacker with system access to obtain all user password hashes. This violates the principle of separating privileged credential data from standard user information.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/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 checksWork through these to decide whether this CVE applies to you.
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Identify the DDC4000 series deviceCheck the system model or product identifier to confirm the device is from the DDC4000 series. This may be visible in system information, boot logs, or device documentation.Affected if The device is a DDC4000 series model
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Verify /etc/passwd is world-readableCheck the file permissions on /etc/passwd using 'ls -la /etc/passwd'. The file should have read permissions for all users (-rw-r--r--).Affected if The file permissions allow world-readable access (typical for /etc/passwd)
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Determine if password hashes exist in /etc/passwdExamine the second field of user entries in /etc/passwd using 'cat /etc/passwd'. Look for entries where the second field is NOT 'x' or '*' (which would indicate /etc/shadow is being used).Affected if User entries contain actual password hash strings in the second field rather than placeholder characters like 'x' or '*'
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Confirm /etc/shadow is not being used for password storageCheck if /etc/shadow exists using 'ls -la /etc/shadow' and verify it contains the actual password hashes instead of /etc/passwd.Affected if Either /etc/shadow does not exist, or it does not contain the password hash data for users defined in /etc/passwd
The environment is affected if this is a DDC4000 series device and password hashes are stored in the world-readable /etc/passwd file rather than the protected /etc/shadow file.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement proper credential protection by moving password hashes to /etc/shadow with appropriate file permissions, or implement a proper authentication backend. Apply vendor firmware updates if available.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-43812 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-43812 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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