dbcve.org
Novabackup DatacenterApplication · Novastor

CVE-2016-4898

CRITICAL · 9.8 CVSS v3.0 Published 2017-04-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
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
The datamover module in the Linux version of NovaBACKUP DataCenter before 09.06.03.0353 is vulnerable to remote command execution via unspecified attack 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 · moderate confidence

The datamover module in NovaBACKUP DataCenter (Linux) versions prior to 09.06.03.0353 contains a pre-authentication remote command execution vulnerability, allowing unauthenticated attackers to execute arbitrary commands on the affected system with high confidence based on the critical CVSS score.

MitigationUpgrade NovaBACKUP DataCenter to version 09.06.03.0353 or later. If immediate patching is not possible, restrict network exposure of the datamover module to trusted internal networks or disable the service until patched.

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
Novabackup DatacenterApplication
Affected:all versions

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
High
Availability
High

CVSS:3.0/AV:N/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 checks

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

  1. Confirm NovaBACKUP DataCenter installation
    Check if NovaBACKUP DataCenter is installed on the Linux system by looking for its process, service, or installation directory. Common locations include /opt/novabackup, /usr/local/novabackup, or check running processes for novabackup-related binaries.
    Affected if NovaBACKUP DataCenter is found to be installed on the system.
  2. Identify the installed version
    Locate the version information for the installed NovaBACKUP DataCenter. This may be found in a version file within the installation directory, in the application GUI or CLI, or by querying the running service. Common commands include checking /opt/novabackup/version, using 'rpm -qi novabackup' or 'dpkg -l novabackup' if installed via package manager, or running the application's version flag.
    Affected if A version number lower than 09.06.03.0353 is identified.
  3. Determine if datamover module is accessible
    Identify whether the datamover module is running and network-accessible. Check for open ports associated with the datamover service (commonly port 8085 or similar), review firewall rules, and examine the service configuration to confirm the module is exposed to network connections.
    Affected if The datamover module is running and accessible over the network.

The system is affected if NovaBACKUP DataCenter is installed with a version prior to 09.06.03.0353 and the datamover module is network-accessible.

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 NovaBACKUP DataCenter to version 09.06.03.0353 or later. If immediate patching is not possible, restrict network exposure of the datamover module to trusted internal networks or disable the service until patched.

Recommended fix High confidence

09.06.03.0353 or later

  1. 1. Identify the current installed version of NovaBACKUP DataCenter on the Linux system
  2. 2. Download NovaBACKUP DataCenter version 09.06.03.0353 or later from the official vendor
  3. 3. Follow the vendor's documented upgrade procedure to install the fixed version
  4. 4. Verify the upgraded version matches or exceeds 09.06.03.0353
  5. 5. Test that the datamover module functions correctly post-upgrade

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

Fix this in Novabackup Datacenter Scoped from the published advisory
  • Consultation4.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,120
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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-2016-4898 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