NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2024-5491 and CVE-2024-5492

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2024-5491 and CVE-2024-5492

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Article ID: CTX677944

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Updated On:

Description

Description of Problem

Two vulnerabilities have been discovered in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway). Refer to below for further details:

Affected Versions

The following supported versions of NetScaler ADC and NetScaler Gateway are affected by the vulnerabilities: 

  • NetScaler ADC and NetScaler Gateway 14.1 before 14.1-25.53
  • NetScaler ADC and NetScaler Gateway 13.1 before 13.1-53.17
  • NetScaler ADC and NetScaler Gateway 13.0 before 13.0-92.31
  • NetScaler ADC 13.1-FIPS before 13.1-37.183
  • NetScaler ADC 12.1-FIPS before 12.1-55.304
  • NetScaler ADC 12.1-NDcPP before 12.1-55.304

Note: NetScaler ADC and NetScaler Gateway version 12.1 is now End Of Life (EOL) and is vulnerable. Customers are recommended to upgrade their appliances to one of the supported versions that address the vulnerabilities. 

This bulletin only applies to customer-managed NetScaler ADC and NetScaler Gateway. Customers using Citrix-managed cloud services or Citrix-managed Adaptive Authentication do not need to take any action.

Summary

NetScaler ADC and NetScaler Gateway contain the vulnerabilities mentioned below 

CVE ID          DescriptionPre-requisites    CWECVSS
CVE-2024-5491Denial of ServiceADC or Gateway appliance configured with
SNMP (NSIP, CLIP, or SNIP with Management Interface enabled)		CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS v4.0 Base Score: 7.1

(CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N) 
CVE-2024-5492Open redirect vulnerability allows a remote unauthenticated attacker to redirect users to arbitrary websitesRequires targeted user to access an attacker-controlled URL while being on a network with access to NSIP, CLIP, or SNIP with Management Interface enabledCWE-601: URL Redirection to Untrusted Site ('Open Redirect')CVSS v4.0 Base Score: 5.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N)

What Customers Should Do

Cloud Software Group strongly urges affected customers of NetScaler ADC and NetScaler Gateway to install the relevant updated versions as soon as possible. 

  • NetScaler ADC and NetScaler Gateway 14.1-25.53 and later releases
  • NetScaler ADC and NetScaler Gateway 13.1-53.17 and later releases of 13.1
  • NetScaler ADC and NetScaler Gateway 13.0-92.31 and later releases of 13.0 
  • NetScaler ADC 13.1-FIPS 13.1-37.183 and later releases of 13.1-FIPS 
  • NetScaler ADC 12.1-FIPS 12.1-55.304 and later releases of 12.1-FIPS 
  • NetScaler ADC 12.1-NDcPP 12.1-55.304 and later releases of 12.1-NDcPP 

Note: NetScaler ADC and NetScaler Gateway version 12.1 is now End Of Life (EOL). Customers are recommended to upgrade their appliances to one of the supported versions that address the vulnerabilities. 

Acknowledgments

Cloud Software Group thanks Nanyu Zhong of VARAS@IIE and Mauro Dini, and Bart Stakun of Goldman Sachs – TechRisk Security Research for working with us to protect Citrix customers.

What Citrix is Doing

Citrix is notifying customers and channel partners about this potential security issue through the publication of this security bulletin on the Citrix Knowledge Center at https://support.citrix.com/securitybulletins.

Obtaining Support on This Issue

If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at https://www.citrix.com/support/open-a-support-case.

Subscribe to Receive Alerts

Citrix strongly recommends that all customers subscribe to receive alerts when a Citrix security bulletin is created or modified at https://support.citrix.com/user/alerts.

Reporting Security Vulnerabilities to Citrix

Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For details on our vulnerability response process and guidance on how to report security-related issues to Citrix, please see the following webpage: https://www.citrix.com/about/trust-center/vulnerability-process.html.

Disclaimer

The information on this page is being provided to you on an "AS IS" and "AS-AVAILABLE" basis. The issues described on this page may or may not impact your system(s). Cloud Software Group, Inc. and its subsidiaries (collectively, "Cloud SG") make no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. BY ACCESSING THIS PAGE, YOU ACKNOWLEDGE THAT CLOUD SG SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. Cloud SG reserves the right to change or update the information on this page at any time. We accordingly recommend that you always view the latest version of this page. The information contained herein is being provided to you under the terms of your applicable customer agreement with Cloud SG, and may be used only for the purposes contemplated by such agreement. If you do not have such an agreement with Cloud SG, this information is provided under the cloud.com Terms of Use, and may be used only for the purposes contemplated by such Terms of Use.

Changelog

2024-07-09Initial Publication
2024-07-09Updated the 'Initial Publication' date
2024-07-11Removed error text in the CVSS vector for CVE-2024-5491
2024-07-15Platform migration
2024-07-24Updated 'Pre-requisites' for the CVEs to add SNIP and CLIP
2025-03-11Updated acknowledgments

 

 

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