dbcve.org
AvalancheApplication · Ivanti

CVE-2023-41725

HIGH · 7.8 CVSS v3.1 Published 2023-11-03
Fix available
A fix is available. Upgrade to 6.4.1.236 or later.
See remediation →
80/100
Remediation priority · High
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
Ivanti Avalanche EnterpriseServer Service Unrestricted File Upload Local Privilege Escalation Vulnerability

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

Ivanti Avalanche EnterpriseServer contains an unrestricted file upload vulnerability that allows a local attacker to upload arbitrary files to the system, leading to local privilege escalation. This vulnerability stems from insufficient validation of uploaded files in the EnterpriseServer Service component, potentially enabling an authenticated local user to gain elevated privileges.

MitigationApply vendor-supplied patches for Ivanti Avalanche when available, and implement strict file upload validation and access controls on the EnterpriseServer service to limit exposure. Restrict local user privileges and monitor for suspicious file creation activities.

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
AvalancheApplication
Affected:< 6.4.1.236

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

CVSS:3.1/AV:L/AC:L/PR:L/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 Ivanti Avalanche EnterpriseServer is installed
    Locate the Ivanti Avalanche installation directory or check installed programs on the system to confirm the product is present.
    Affected if Ivanti Avalanche EnterpriseServer is found on the system
  2. Determine installed version of Ivanti Avalanche
    Use system tools, installer information, or product documentation to find the currently installed version number of Ivanti Avalanche.
    Affected if A version number is returned from the system
  3. Compare version against the affected range
    Compare your installed version to 6.4.1.236 - the vulnerability affects versions lower than this threshold.
    Affected if Installed version is less than 6.4.1.236
  4. Confirm EnterpriseServer Service component is enabled
    Check if the EnterpriseServer Service component is running or enabled within the Ivanti Avalanche deployment.
    Affected if EnterpriseServer Service is active and accepting uploads
  5. Review file upload permissions on EnterpriseServer
    Inspect access controls and permissions configuration for the file upload functionality in the EnterpriseServer component.
    Affected if Unrestricted or weakly controlled file upload permissions exist on EnterpriseServer

You are affected if Ivanti Avalanche EnterpriseServer is installed with a version lower than 6.4.1.236 and the EnterpriseServer Service component with file upload capability is enabled.

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 6.4.1.236 or later
Fixed in 6.4.1.236
Interim mitigation

Apply vendor-supplied patches for Ivanti Avalanche when available, and implement strict file upload validation and access controls on the EnterpriseServer service to limit exposure. Restrict local user privileges and monitor for suspicious file creation activities.

Recommended fix High confidence

Ivanti Avalanche version 6.4.1.236 or later

  1. 1. Navigate to the official download portal at download.wavelink.com
  2. 2. Locate and download Ivanti Avalanche version 6.4.1.236 or later
  3. 3. Review the release notes for any special upgrade instructions
  4. 4. Create a complete backup of the current Avalanche installation and database
  5. 5. Stop the Avalanche EnterpriseServer service
  6. 6. Install the new version (6.4.1.236 or later) following the standard upgrade procedure
  7. 7. Verify the installation was successful
  8. 8. Restart the Avalanche EnterpriseServer service

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

Fix this in Avalanche Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.

Scan for this in your stack

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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-2023-41725 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