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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0421 Citrix NetScaler Application Delivery Controller and NetScaler Gateway Multiple Security Updates 19 February 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Citrix NetScaler Publisher: Citrix Operating System: Network Appliance Impact/Access: Increased Privileges -- Existing Account Execute Arbitrary Code/Commands -- Existing Account Provide Misleading Information -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2016-2072 CVE-2016-2071 Original Bulletin: http://support.citrix.com/article/CTX206001 - --------------------------BEGIN INCLUDED TEXT-------------------- Citrix NetScaler Application Delivery Controller and NetScaler Gateway Multiple Security Updates Security Bulletin | Medium | Created: 10 Feb 2016 | Modified: 11 Feb 2016 Description of Problem A number of vulnerabilities have been identified in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway that could allow a malicious, unprivileged user to perform privileged operations or execute commands. The following vulnerabilities have been addressed: CVE-2016-2071: Citrix NetScaler Application Delivery Controller and NetScaler Gateway Command Privilege Elevation Vulnerability Through Un-sanitised NS Web GUI Commands. CVE-2016-2072: Vulnerability in Citrix NetScaler Application Delivery Controller and NetScaler Gateway Administrative Web Interface Could Result in Click-Jacking. These vulnerabilities affect the following versions of Citrix NetScaler ADC and NetScaler Gateway: Version 11.0 earlier than 11.0 Build 64.34. Version 10.5 earlier than 10.5 Build 59.13 and 10.5.e earlier than 10.5.e Build 59.1305.e All builds of version 10.1 are affected by CVE-2016-2072 only. CVE-2016-2071 does not affect version 10.1 What Customers Should Do These vulnerabilities have been addressed in the following versions of Citrix NetScaler ADC and NetScaler Gateway: Citrix NetScaler ADC and NetScaler Gateway version 11.0 Build 64.34 and later Citrix NetScaler ADC and NetScaler Gateway version 10.5 Build 59.13 and later and version 10.5.e Build 59.1305.e and later Customers using Citrix NetScaler ADC and NetScaler Gateway 10.1 with specific concerns around CVE-2015-2072 (Clickjacking), and that are not able to upgrade to these new versions, can upgrade to version 10.1 Build 133.9 and later which contain additional protections for this issue. These new versions can be downloaded from the following locations: https://www.citrix.com/downloads/netscaler-adc.html https://www.citrix.com/downloads/netscaler-gateway.html Citrix recommends that customers using affected versions of the NetScaler ADC and NetScaler Gateway upgrade to a version of the appliance firmware that contains the fixes for these issues as soon as their normal patching schedule allows. Acknowledgements Citrix thanks Chathura Abeydeera of Deloitte Touche Tohmatsu Australia for working with us to protect Citrix customers. What Citrix Is Doing Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at http://support.citrix.com/. 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 http://www.citrix.com/site/ss/supportContacts.asp. Reporting Security Vulnerabilities Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For guidance on how to report security-related issues to Citrix, please see the following document: CTX081743 Reporting Security Issues to Citrix Changelog Date Change February 10th 2016 Initial publishing February 11th 2016 Update to Description of Problem section Applicable Products NetScaler 10.1 NetScaler 10.5 NetScaler 11.0 NetScaler Gateway 10.1 NetScaler Gateway 10.5 NetScaler Gateway 11.0 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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