Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0227 -- [Win] Weakness in Citrix Presentation Server and Citrix Desktop Server installer could result in credentials being logged 3 March 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Citrix Presentation Server 4.5 (all versions) Citrix Desktop Server 1.0 Publisher: Citrix Operating System: Windows Server 2003 Impact: Access Confidential Data Access: Existing Account Original Bulletin: http://support.citrix.com/article/CTX116491 - --------------------------BEGIN INCLUDED TEXT-------------------- Weakness in Citrix Presentation Server and Citrix Desktop Server installer could result in credentials being logged Document ID: CTX116228 Created On: Feb 27, 2008 Updated On: Feb 27, 2008 Average Rating: 1 View products this document applies to link to products this document applies to Severity: Low Description of Problem Under specific circumstances, the installation process for Citrix Presentation Server 4.5 and Citrix Desktop Server 1.0 could result in database credentials being written to an MSI logfile. This weakness affects the following products: Citrix Presentation Server 4.5 (all versions) Citrix Desktop Server 1.0 Mitigating Factors If MSI logging was not enabled when the product was installed, the credentials will not be logged. By default, MSI logging is not enabled. In order for this problem to occur, MSI logging would need to be enabled at the time the affected product is installed. MSI logging can be enabled by either a command-line option specified at install time, a registry setting, or a group policy setting. It is general good practice to ensure that access to logfiles is restricted to appropriate users. When access to the logfiles is suitably restricted, there is a much reduced risk of the credentials being disclosed. What Customers Should Do Customers that have installed an affected product should ensure that any generated logfiles are suitably locked down or deleted. Customers that are planning to install an affected product have a number of options: Ensure MSI logging is disabled Ensure that logfiles are written to a suitably locked down location Apply the supplied MSI transform described below Citrix has released an MSI transform that, when applied, will prevent a vulnerable installer logging the database credentials even if MSI logging is enabled. The transform is available at the following location: http://support.citrix.com/article/CTX116491 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. - --------------------------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 iQCVAwUBR8tPoSh9+71yA2DNAQJZyAP/TzOmzu7Ca3/mgTc+yiHjXPmAF9LKsX3S YDW5eZzFjXaQELP2gqTC6tHq39OCRgCmyho8DUhzIjJzDRJFFpmfPyOCAGgwMBWO /EEqxSosHODPqWuUtRJEeNHrSwnZGmAHnjqoUBbOeJU/l61jfPyuJAorMt7ZqiiE hJKiGs8sj2U= =KCjp -----END PGP SIGNATURE-----