dbcve.org
Mac Os XOperating system · Apple

CVE-2018-4324

MEDIUM · 5.5 CVSS v3.0 Published 2019-04-03
Fix available
A fix is available. Upgrade to 10.14 or later.
See remediation →
58/100
Remediation priority · Elevated
No privileges

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 permissions issue existed in the handling of the Apple ID. This issue was addressed with improved access controls. This issue affected versions prior to macOS Mojave 10.14.

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 permissions vulnerability in macOS allowed improper access to Apple ID functionality due to insufficient access controls. This could enable a local attacker to potentially access or manipulate Apple ID-related data without proper authorization. The issue was patched in macOS Mojave 10.14 with improved access control enforcement.

MitigationUpgrade affected macOS systems to version 10.14 (Mojave) or later to obtain the improved access controls that address this permissions issue.

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
Mac Os XOperating system
Affected:< 10.14

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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. Determine installed macOS version
    Click Apple menu > About This Mac, or run 'sw_vers' in Terminal
    Affected if Version is earlier than 10.14 (Mojave)
  2. Verify macOS build date
    Run 'system_profiler SPSoftwareDataType' in Terminal to confirm the install date and version details
    Affected if System reports a version below 10.14
  3. Confirm Apple ID service access controls
    This vulnerability involves insufficient access controls on Apple ID functionality. Check if any unauthorized access to Apple ID-related features has occurred by reviewing system logs for Apple ID authentication events
    Affected if Running an affected macOS version and anomalous Apple ID access is found in logs

A system is affected if it runs any version of macOS prior to 10.14 (Mojave), as only those versions lack the improved access control enforcement for Apple ID functionality.

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
Upgrade available Upgrade to 10.14 or later
Fixed in 10.14
Interim mitigation

Upgrade affected macOS systems to version 10.14 (Mojave) or later to obtain the improved access controls that address this permissions issue.

Fix this in Mac Os X Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

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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-2018-4324 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
  • No spam, self-promotion, credentials, or personal data