Versa DirectorApplication · Versa Networks

CVE-2019-25029

CRITICAL · 9.8 CVSS v3.1 Published 2021-05-26
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
In Versa Director, the command injection is an attack in which the goal is execution of arbitrary commands on the host operating system via a vulnerable application. Command injection attacks are possible when an application passes unsafe user supplied data (forms, cookies, HTTP headers etc.) to a system shell. In this attack, the attacker-supplied operating system commands are usually executed with the privileges of the vulnerable application. Command injection attacks are possible largely due to insufficient input validation.

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

Versa Director contains a command injection vulnerability allowing remote attackers to execute arbitrary operating system commands via insufficiently validated user input. The vulnerability stems from the application passing unsafe user-supplied data to system shell commands without proper sanitization, enabling attackers to execute commands with the privileges of the vulnerable application.

MitigationImplement strict input validation and sanitization for all user-supplied data, preferably using allowlist validation. Replace system shell command executions with safe APIs, parameterized commands, or library functions that do not invoke shell interpreters.

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
Versa DirectorApplication
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:3.1/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 Versa Director installation
    Identify whether Versa Networks Versa Director software is installed or running in your environment. Check for processes named 'versa-director' or 'vd' or look for the application in standard installation directories.
    Affected if If Versa Director is present and running, the environment is affected since all versions are vulnerable.
  2. Identify web interface or API exposure
    Locate the Versa Director web management interface or REST API endpoints. Check for configuration files that define listener ports (typically 8181 for web UI) and network bindings.
    Affected if If the web interface or API is exposed and accepts user input, the command injection vulnerability can be triggered.
  3. Check for user input fields
    Review the Versa Director web interface or API for input fields that could accept user-supplied data, particularly those that might interact with system commands or configuration settings.
    Affected if If user input fields exist that are passed to system shell commands without proper validation, the vulnerability is present.
  4. Review logging for suspicious activity
    Examine Versa Director logs for any unusual or unexpected command executions, particularly those containing shell metacharacters (such as ; | & $ ` or newline characters) in what should be data fields.
    Affected if If logs show shell command execution with user-supplied input containing metacharacters, exploitation may have occurred.

If Versa Director is installed and exposes any user-accessible interface, your environment is affected since all versions contain this command injection 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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict input validation and sanitization for all user-supplied data, preferably using allowlist validation. Replace system shell command executions with safe APIs, parameterized commands, or library functions that do not invoke shell interpreters.

Fix this in Versa Director Scoped from the published advisory
  • Consultation8.0 h
  • Implementation24.0 h
  • Testing16.0 h
  • Review / QA8.0 h
56.0 hours of engineering $9,760
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Scan for this in your stack

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dbcve dependency scanner

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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-2019-25029 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
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