dbcve.org
Application Delivery ControllerApplication · Citrix

CVE-2023-24487

HIGH · 7.5 CVSS v3.1 Published 2023-07-10
Fix available
A fix is available. Upgrade to 12.1-55.296 / 12.1-65.35 or later.
See remediation →
84/100
Remediation priority · High
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
Arbitrary file read in Citrix ADC and Citrix Gateway 

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

An arbitrary file read vulnerability in Citrix ADC and Citrix Gateway allows an attacker to read sensitive files on the system they should not have access to, potentially exposing configuration files, credentials, or other sensitive data.

MitigationApply Citrix security updates immediately. If patches are unavailable, restrict network access to management interfaces and monitor for unusual file access patterns.

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
Application Delivery ControllerApplication
Affected:>= 12.1, < 12.1-55.296>= 12.1, < 12.1-65.35>= 13.0, < 13.0-90.11>= 13.1, < 13.1-37.150>= 13.1, < 13.1-45.61
GatewayApplication
Affected:>= 12.1, < 12.1-65.35>= 13.0, < 13.0-90.11>= 13.1, < 13.1-45.61

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
None
Availability
None

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

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 product and version
    Log into the Citrix ADC or Gateway CLI and run 'show version' or check the management interface for the build number
    Affected if The displayed version falls within any of the affected ranges: 12.1 before 12.1-55.296 or 12.1-65.35; 13.0 before 13.0-90.11; 13.1 before 13.1-37.150 or 13.1-45.61
  2. Confirm product type
    Verify whether the installed system is Citrix ADC, Citrix Gateway, or a combined deployment using 'show ns version' or checking the license and feature set
    Affected if The device runs Citrix ADC or Citrix Gateway in any affected version
  3. Check management interface exposure
    Determine if the management interface (NSIP, VIP, or SSL VPN portal) is accessible from untrusted networks by reviewing network configurations and firewall rules
    Affected if The management or VPN portal is exposed to the internet or untrusted networks without proper access controls
  4. Review audit and access logs
    Search system logs and audit logs for unusual or unauthorized file read requests, particularly to system configuration files or sensitive directories
    Affected if Logs contain requests for files outside normal administrative operations, especially from external IP addresses
  5. Check for unauthorized configuration exports
    Look for evidence of unsanctioned 'ns.conf' exports, directory traversal patterns in logs, or unexpected configuration file access
    Affected if Logs or file system show evidence of arbitrary file read attempts or unauthorized configuration exports

You are affected if your Citrix ADC or Gateway version is one of the listed versions and the management interface is network-accessible to potential attackers.

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 12.1-55.296 / 12.1-65.35 / 13.0-90.11 or later
Fixed in 12.1-55.29612.1-65.3513.0-90.11
Interim mitigation

Apply Citrix security updates immediately. If patches are unavailable, restrict network access to management interfaces and monitor for unusual file access patterns.

Recommended fix High confidence

Citrix ADC: 13.1-37.150 or later; Citrix Gateway: 13.1-45.61 or later (or equivalent 12.1/13.0 fixes per branch)

  1. 1. Identify the exact Citrix ADC or Gateway version currently installed using 'show version' command
  2. 2. For Citrix ADC: Upgrade to version 12.1-55.296 or higher (12.1 branch), or 12.1-65.35 or higher, or 13.0-90.11 or higher, or 13.1-37.150 or higher depending on your baseline
  3. 3. For Citrix Gateway: Upgrade to version 12.1-65.35 or higher, or 13.0-90.11 or higher, or 13.1-45.61 or higher depending on your baseline
  4. 4. Download the appropriate build from support.citrix.com
  5. 5. Install the upgrade following Citrix documentation - typically via the 'install' command or through the management interface
  6. 6. Verify the upgrade was successful with 'show version'
  7. 7. Confirm the vulnerability is resolved by checking the build number matches or exceeds the fixed versions
Caveat Review Citrix release notes for breaking changes between your current version and target version before upgrading; some upgrades may require specific migration steps

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

Fix this in Application Delivery Controller Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-24487 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2023-24487 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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