Remote DesktopApplication · Apple

CVE-2017-2488

HIGH · 7.5 CVSS v3.1 Published 2021-12-23
Fix available
A fix is available. Upgrade to 3.9 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges 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 cryptographic weakness existed in the authentication protocol of Remote Desktop. This issue was addressed by implementing the Secure Remote Password authentication protocol. This issue is fixed in Apple Remote Desktop 3.9. An attacker may be able to capture cleartext passwords.

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

A cryptographic weakness in Apple Remote Desktop's authentication protocol allowed attackers to capture cleartext passwords during the authentication process. The vulnerability was addressed by implementing the Secure Remote Password (SRP) authentication protocol in version 3.9.

MitigationUpgrade Apple Remote Desktop to version 3.9 or later to obtain the fixed SRP authentication implementation.

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
Remote DesktopApplication
Affected:< 3.9

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
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/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. Confirm Apple Remote Desktop is installed
    Check the /Applications folder for Apple Remote Desktop.app, or run: ls /Applications | grep -i 'remote desktop'
    Affected if The application exists in /Applications
  2. Determine the installed version of Apple Remote Desktop
    Right-click Apple Remote Desktop.app > Get Info, or inspect the app bundle's Info.plist for CFBundleShortVersionString, or check via System Preferences > Apple Remote Desktop > Info
    Affected if A version number is found that is less than 3.9
  3. Verify the authentication protocol in use
    Check Apple Remote Desktop settings in System Preferences > Remote Desktop, or inspect the client connection settings to confirm legacy authentication is enabled
    Affected if Remote Desktop client connections are allowed to legacy (non-SRP) authentication methods

If Apple Remote Desktop is installed with a version lower than 3.9 and legacy authentication is enabled, the environment is affected by this cleartext password capture 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.

dbcve · scoped
Upgrade available Upgrade to 3.9 or later
Fixed in 3.9
Interim mitigation

Upgrade Apple Remote Desktop to version 3.9 or later to obtain the fixed SRP authentication implementation.

Recommended fix High confidence

Apple Remote Desktop 3.9

  1. 1. Open the App Store on the Mac running Apple Remote Desktop
  2. 2. Click on the Updates tab to check for available updates
  3. 3. If Apple Remote Desktop 3.9 is available, click Update to download and install it
  4. 4. Alternatively, download Apple Remote Desktop 3.9 directly from the Apple Support website (support.apple.com)
  5. 5. Open the downloaded .dmg file and run the installer
  6. 6. Follow the on-screen instructions to complete the installation
  7. 7. Restart the Remote Desktop service or reboot the Mac if prompted
Caveat Ensure all client Macs connecting to the Remote Desktop host support the new Secure Remote Password (SRP) authentication protocol; older client versions may need updating

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Remote Desktop Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
5.0 hours of engineering $860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,376.

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-2017-2488 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