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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2007.1041 -- [Win] Cross-site scripting vulnerability in legacy versions of Citrix Web Interface 31 December 2007 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Citrix Web Interface 2.0 and below Citrix NFuse Publisher: Citrix Operating System: Windows Impact: Cross-site Scripting Access: Remote/Unauthenticated CVE Names: CVE-2007-6477 Original Bulletin: http://support.citrix.com/article/CTX115283 Revision History: December 31 2007: Added CVE December 20 2007: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Cross-site scripting vulnerability in legacy versions of Citrix Web Interface Document ID: CTX115283 Created On: 18-Dec-2007 Updated On: 18-Dec-2007 Severity: Medium Description of Problem A cross-site scripting vulnerability has been identified in the on-line help of legacy versions of Citrix Web Interface. This vulnerability could potentially be used to execute malicious client-side script in the same context as legitimate content from the web server; if this vulnerability is used to execute script in the browser of an authenticated user then the script may be able to gain access to the authenticated users session or other potentially sensitive information. The following Citrix products are affected by this vulnerability: Citrix NFuse (all versions) Citrix Web Interface up to and including 2.0 Mitigating Factors In order for this vulnerability to be exploited a user would have to visit to a URL that had been constructed by an attacker. This would typically involve either visiting a web page owned by the attacker or clicking on a URL in an email from the attacker. What Customers Should Do This vulnerability has been addressed in current versions of Web Interface. Citrix recommends that customers using affected versions of Web Interface upgrade to the latest version. The latest version of Web Interface can be found at the following location: http://www.citrix.com/English/SS/downloads/downloads.asp?dID=36407 Please note that all affected product versions have already reached End of Life. Acknowledgements Citrix thanks David Vaartjes of ITsec Security Services B.V 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 Base at http://support.citrix.com/. Obtaining Support on this Issue If you require technical assistance with this issue, please contact Citrix Technical Support. Information for contacting Citrix Technical Support is available at http://support.citrix.com/. Reporting Security Vulnerabilities to Citrix Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities very seriously. If you would like to report a security issue to Citrix, please compose an e-mail to secure@citrix.com containing the exact version of the product in which the vulnerability was found and the steps needed to reproduce the vulnerability. This document applies to: * Web Interface 2.0 - --------------------------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 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 iQCVAwUBR3hxkSh9+71yA2DNAQJEhAP9HfpnqK76nBIMW2OYkunmzK2+2qH69RpW TUdYnpMg19p+V/3zTFfRtrw9GjryZlEEZE37Yo0yqo+G8V9iY0R5JXiMllV4dnJw KWEUPO1YI2h8UiGsJO2Y3DAW90aYUrEvFqNCoUFMoZ7zuROtzFHDiKCyWubhljfl sTcVCTaxcyM= =RB// -----END PGP SIGNATURE-----