dbcve.org
Path TraversalWeakness · CWE-22

CVE-2024-31851

HIGH · 8.6 CVSS v3.1 Published 2024-04-05
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
95/100
Remediation priority · Urgent
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 path traversal vulnerability exists in the Java version of CData Sync < 23.4.8843 when running using the embedded Jetty server, which could allow an unauthenticated remote attacker to gain access to sensitive information and perform limited actions.

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 path traversal vulnerability in CData Sync's Java version (running on embedded Jetty) prior to version 23.4.8843 allows unauthenticated remote attackers to access sensitive files outside the intended web root directory through specially crafted path traversal sequences in HTTP requests.

MitigationUpgrade CData Sync to version 23.4.8843 or later. If immediate upgrading is not feasible, restrict network exposure of the Jetty server by placing it behind a properly configured reverse proxy with authentication or disabling unauthenticated access.

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

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

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. Verify CData Sync is installed
    Locate CData Sync installation directory - common paths include C:\Program Files\CData\CData Sync or /opt/cdatasync. Check for sync.jar, sync.bat, or sync.sh executables.
    Affected if CData Sync Java version is present on the system
  2. Determine installed CData Sync version
    Check the version of the sync executable or examine the sync.jar manifest file. Common methods: run sync.bat -version, check the About dialog in the application, or examine the installation directory for a version file.
    Affected if The installed version is lower than 23.4.8843 (any version prior to 23.4.8843)
  3. Confirm Java-based Jetty deployment
    Identify if running the Java version with embedded Jetty - check for jetty.jar or similar Jetty libraries in the lib or app directory, and confirm the application runs on a Java JVM.
    Affected if The deployment uses the Java version with embedded Jetty server (not .NET or other variants)
  4. Check network exposure of the Jetty server
    Review network configuration files, firewall rules, and the server.xml or jetty.xml configuration to determine if the Jetty HTTP port (default 8080 or 8443) is exposed to unauthenticated network access.
    Affected if The Jetty server HTTP/HTTPS ports are accessible from untrusted networks without authentication or proxy protection

A user is affected if CData Sync Java version prior to 23.4.8843 is running with embedded Jetty and the server port is exposed to unauthenticated network access.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade CData Sync to version 23.4.8843 or later. If immediate upgrading is not feasible, restrict network exposure of the Jetty server by placing it behind a properly configured reverse proxy with authentication or disabling unauthenticated access.

Recommended fix Moderate confidence

CData Sync Java version 23.4.8843 or later

  1. 1. Identify the currently installed CData Sync Java version
  2. 2. If the version is earlier than 23.4.8843, plan for an upgrade to version 23.4.8843 or later
  3. 3. Obtain the updated CData Sync installation package from the official vendor
  4. 4. Perform a backup of existing configurations and data
  5. 5. Install the updated version following vendor documentation
  6. 6. Verify the patch was applied by checking the CData Sync version number
Caveat Review CData release notes for version 23.4.8843 to check for any breaking changes or migration requirements

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

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing6.0 h
  • Review / QA3.0 h
14.0 hours of engineering $2,400
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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-2024-31851 in production — separate from our analysis above.

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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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