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Netvault BackupApplication · Quest

CVE-2017-17422

CRITICAL · 9.8 CVSS v3.0 Published 2018-02-08
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
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NVBUBackup Get method requests. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of the underlying database. Was ZDI-CAN-4233.

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 critical SQL injection vulnerability in Quest NetVault Backup 11.3.0.12 allows unauthenticated remote attackers to execute arbitrary code via the NVBUBackup Get method. The flaw stems from improper validation of user-supplied strings before using them in SQL query construction, enabling attackers to inject malicious SQL statements and execute code in the database context.

MitigationApply vendor patches for NetVault Backup 11.3.0.12 and implement parameterized queries with proper input validation for all user-supplied data in NVBUBackup methods. If no patch available, consider network segmentation to limit exposure.

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
Netvault BackupApplication
Affected:= 11.3.0.12

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. Verify Quest NetVault Backup is installed
    Locate the NetVault Backup installation on the system, typically found in Program Files/Quest/NetVault Backup or via system inventory tools
    Affected if NetVault Backup software is present on the system
  2. Check installed NetVault Backup version
    Use the application's version information dialog, check the About section in the NetVault Backup console, or query the installed software registry/manifest
    Affected if The installed version is exactly 11.3.0.12
  3. Confirm NVBUBackup service accessibility
    Identify if the NVBUBackup web service or API endpoint is exposed and accessible on the network
    Affected if The NVBUBackup interface is reachable from the network (unauthenticated)
  4. Inspect web service configuration
    Review the NetVault Backup web server configuration to determine if the NVBUBackup Get method is enabled and accessible without authentication
    Affected if The NVBUBackup Get method is enabled and accepts unauthenticated requests

A system is affected if Quest NetVault Backup version 11.3.0.12 is installed and the NVBUBackup web service endpoint is accessible, allowing unauthenticated SQL injection via the Get method.

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

Apply vendor patches for NetVault Backup 11.3.0.12 and implement parameterized queries with proper input validation for all user-supplied data in NVBUBackup methods. If no patch available, consider network segmentation to limit exposure.

Recommended fix Moderate confidence

Latest available NetVault Backup version (contact Quest Support for exact version number containing the CVE-2017-17422 fix)

  1. Identify the current NetVault Backup version by checking the About or Version information in the NetVault Backup web interface or command-line tools
  2. Contact Quest Software Technical Support to obtain the specific patched version for NetVault Backup that addresses CVE-2017-17422
  3. Alternatively, download the latest available NetVault Backup version from the Quest Software Support website (support.quest.com) which should contain fixes for this vulnerability
  4. Before upgrading, backup the NetVault Backup configuration and database
  5. Stop the NetVault Backup services before performing the upgrade
  6. Install the patched or upgraded version following Quest's standard upgrade documentation
  7. Restart NetVault Backup services after installation
  8. Verify the NVBUBackup Get method functionality works correctly and that the SQL injection vulnerability is remediated
Caveat Review Quest release notes for any configuration or feature changes between versions; test thoroughly in non-production environment first

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

Fix this in Netvault Backup Scoped from the published advisory
  • Consultation4.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,600
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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-2017-17422 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
  • No weaponised exploit code, or anything meant to cause harm
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