Citrix Presentation Server Published Application Information May Let Remote Users Execute Arbitrary Commands
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SecurityTracker Alert ID: 1018962
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SecurityTracker URL: http://securitytracker.com/id?1018962
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CVE Reference: CVE-2002-2426
(Links to External Site)
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Updated: Feb 17 2008
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Original Entry Date: Nov 16 2007
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Impact: Execution of arbitrary code via network, User access via network
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Fix Available: Yes
Exploit Included: Yes
Vendor Confirmed: Yes
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Version(s): 4.0, 4.5
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Description: A vulnerability was reported in Citrix Presentation Server. A remote user may be able to cause arbitrary commands to be executed on the target system.
A remote user can create a specially crafted .ICA file that, when loaded by the target user (initiating an ICA connection), will
invoke a published application and cause the application to execute arbitrary commands on the target system. The commands will
run with the privileges of the target user on the target system.
The specific impact depends on the configuration of the target
server.
pdp reported this vulnerability.
The original advisory is available at:
http://www.gnucitizen.org/blog/citrix-owning-the-legitimate-backdoor/
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Impact: A remote user can create a .ICA file that, when loaded by the target user, will execute arbitrary commands on the target system.
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Solution: The vendor has issued the following hotfixes to help mitigate this vulnerability. The vendor recommends following certain security
procedures as described in their advisory.
Citrix Presentation Server 4.5 for Windows Server 2003:
EN - http://support.citrix.com/article/CTX115275
Citrix
Presentation Server 4.5 for Windows Server 2003 x64 Editions:
EN - http://support.citrix.com/article/CTX115278
Citrix Presentation
Server 4.0 for Windows 2000 Server:
EN - http://support.citrix.com/article/CTX115276
Citrix Presentation Server 4.0 for Windows
Server 2003:
EN - http://support.citrix.com/article/CTX115277
The Citrix advisory is available at:
http://support.citrix.com/article/CTX115245
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Vendor URL: support.citrix.com/article/CTX115245 (Links to External Site)
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Cause: Access control error
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Underlying OS: Windows (2000), Windows (2003)
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Message History:
None.
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Source Message Contents
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Date: Fri, 16 Nov 2007 00:26:34 -0500
Subject: Vulnerability in Citrix Presentation Server could result in unauthorized code execution
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http://support.citrix.com/article/CTX115245
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