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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.0593 -- [Win] Citrix Secure Gateway: Denial of Service 1 July 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Citrix Secure Gateway Publisher: Citrix Operating System: Windows Impact: Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2009-2214 Original Bulletin: http://support.citrix.com/article/CTX121172 Revision History: July 1 2009: Added CVE Reference June 22 2009: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Vulnerability in Citrix Secure Gateway could result in Denial of Service Document ID: CTX121172 / Created On: Jun 15, 2009 / Updated On: Jun 15, 2009 Severity: Medium Description of Problem A vulnerability has been identified in Citrix Secure Gateway that could result in a denial of service. When a specific request is made to the Secure Gateway service from a remote attacker, the Secure Gateway service can be made to consume 100% of the available CPU and may refuse further connections. This vulnerability is present in all versions of Citrix Secure Gateway up to and including version 3.1. Please note that the Citrix Access Gateway appliance is not affected by this vulnerability when configured to act as a Citrix Secure Gateway. What Customers Should Do A hotfix has been released to address this issue. Citrix recommends that customers using Secure Gateway install this hotfix, which can be downloaded from the following locations: Citrix Secure Gateway 3.1: EN - http://support.citrix.com/article/CTX121012 JA - http://support.citrix.com/article/CTX121013 Acknowledgements Citrix would like to thank the Qualys Vulnerability Research team (http://www.qualys.com/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. 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 to Citrix Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. If you would like to report a security issue to Citrix, please compose an e-mail to secure@citrix.com stating the exact version of the product in which the vulnerability was found and the steps needed to reproduce the vulnerability This document applies to: * Access Essentials 2.0 * Access Essentials 3.0 * Secure Gateway 3.0 * Secure Gateway 3.1 - --------------------------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 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFKStOmNVH5XJJInbgRAgu7AJ4puZBr2soGPWuAL+WCKhKc65HEmQCfV8ny LSfSf6H8c9fHOozir4KMlXo= =PIe2 -----END PGP SIGNATURE-----