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Category:   Application (Generic)  >   Citrix Access Gateway Vendors:   Citrix
Citrix Access Gateway Unspecified Bugs Let Remote Users Execute Arbitrary Code, Access Active Sessions, Make Configuration Changes, and Redirect Web Users
SecurityTracker Alert ID:  1018435
SecurityTracker URL:  http://securitytracker.com/id/1018435
CVE Reference:   CVE-2007-0011, CVE-2007-4016, CVE-2007-4017, CVE-2007-4018   (Links to External Site)
Updated:  Apr 24 2008
Original Entry Date:  Jul 20 2007
Impact:   Disclosure of system information, Execution of arbitrary code via network, Modification of user information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 4.5.5
Description:   Several vulnerabilities were reported in Citrix Access Gateway. A remote user can execute arbitrary code on the target user's system. A remote user can make configuration changes. A remote user can redirect users to an arbitrary web site. A local user can access a target user's active session.

A remote user can exploit an unspecified flaw in the Access Gateway Standard and Advanced Edition client to cause arbitrary code to be on the target user's system. The code will run with the privileges of the target user.

Citrix credits Michael White of Symantec with reporting this vulnerability.

The Access Gateway Advanced Edition client leaves residual information on the client system. A local user can gain access to a target user's active session.

Citrix credits Martin O Neal of Corsaire with reporting this vulnerability.

A remote user can conduct cross-site request forgery attacks via the Citrix Access Gateway appliance web-based administration console. This can be exploited to make unauthorized configuration changes on the Access Gateway appliance. Access Gateway Enterprise Edition is not affected.

Citrix credits Paul Johnston with reporting this vulnerability.

A remote user can exploit a flaw in the Access Gateway Advanced Edition to redirect the target user to an arbitrary web site.

Impact:   A remote user can execute arbitrary code on the target user's system.

A remote user can conduct cross-site request forgery attacks to make configuration changes.

A remote user can redirect a target user to an arbitrary web site.

A local user can access a target user's active session.

Solution:   The vendor has issued a fixed version (4.5.5).

The Citrix advisories are available at:

http://support.citrix.com/article/CTX113814
http://support.citrix.com/article/CTX113815
http://support.citrix.com/article/CTX113816
http://support.citrix.com/article/CTX113817

Vendor URL:  support.citrix.com/article/CTX113814 (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  

Message History:   None.


 Source Message Contents

Date:  Thu, 19 Jul 2007 23:56:00 -0400
Subject:  Citrix Access Gateway


http://support.citrix.com/article/CTX113814
http://support.citrix.com/article/CTX113815
http://support.citrix.com/article/CTX113816
http://support.citrix.com/article/CTX113817

 
 


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