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Active Backup For Business AgentApplication · Synology

CVE-2024-47264

MEDIUM · 6.5 CVSS v3.1 Published 2025-02-13
Fix available
A fix is available. Upgrade to 2.7.1-3234 / 2.7.1-13234 or later.
See remediation →
71/100
Remediation priority · Elevated
Remotely reachable 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
Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in agent-related functionality in Synology Active Backup for Business before 2.7.1-13234, 2.7.1-23234 and 2.7.1-3234 allows remote authenticated users with administrator privileges to delete arbitrary files via unspecified vectors.

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

Path traversal vulnerability in Synology Active Backup for Business agent functionality allows authenticated administrators to delete arbitrary files outside the intended restricted directory due to improper pathname validation.

MitigationUpgrade to patched version (2.7.1-13234, 2.7.1-23234, or 2.7.1-3234) and audit administrator access logs for suspicious file deletion activity.

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
Active Backup For Business AgentApplication
Affected:< 2.7.1-13234< 2.7.1-3234< 2.7.1-23234

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

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

Work through these to decide whether this CVE applies to you.

  1. Identify installed Synology Active Backup for Business Agent version
    Open the Synology Active Backup for Business Agent console, or check the installed software list in Windows Programs and Features. The version is typically displayed in the agent's UI under 'About' or in the Windows installed programs list.
    Affected if The installed version number is lower than 2.7.1-13234, 2.7.1-3234, or 2.7.1-23234 (any version below 2.7.1 with these build identifiers).
  2. Verify agent service is running
    Open Windows Services console (services.msc) and locate the 'Synology Active Backup for Business Agent' service. Confirm the service status is Running.
    Affected if The agent service is installed and running, exposing the vulnerable functionality.
  3. Confirm administrator accounts exist for the agent
    Check Synology Active Backup for Business Agent configuration or the associated Synology NAS administrator accounts that have permissions to access the agent functionality.
    Affected if There are authenticated administrator accounts configured that could potentially exploit the path traversal flaw.
  4. Review agent configuration for path restrictions
    Inspect the agent's backup task configuration or global settings for any defined restricted directories. Look for settings related to allowed file paths or destination folders.
    Affected if The agent allows configuration of backup source or destination paths without proper path validation controls enabled.

You are affected if Synology Active Backup for Business Agent version is installed and is lower than 2.7.1-13234 (or the other build variants), with authenticated administrator access configured.

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 2.7.1-3234 / 2.7.1-13234 / 2.7.1-23234 or later
Fixed in 2.7.1-32342.7.1-132342.7.1-23234
Interim mitigation

Upgrade to patched version (2.7.1-13234, 2.7.1-23234, or 2.7.1-3234) and audit administrator access logs for suspicious file deletion activity.

Recommended fix High confidence

Active Backup for Business Agent version 2.7.1-13234 (or 2.7.1-23234 / 2.7.1-3234 or later)

  1. Log into the Synology NAS with administrator privileges
  2. Open Package Center
  3. Locate Active Backup for Business in the installed package list
  4. Check the current version of Active Backup for Business Agent
  5. If the installed version is below 2.7.1-13234 (or 2.7.1-23234, 2.7.1-3234), click 'Update' to install the latest available version
  6. Alternatively, download the updated agent installer from the Synology Download Center and reinstall on connected clients
  7. After update, verify the version number matches or exceeds the fixed releases
Caveat Review Synology release notes for any configuration or feature changes between your current version and 2.7.1; test in non-production environment if possible

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

Fix this in Active Backup For Business Agent Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2024-47264 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